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A&P 1 (Test 3)
Question | Answer |
---|---|
Which bone serves as an enclosure for the pituitary gland? | sphenoid bone The sella turcica of the sphenoid bone serves as an enclosure for the pituitary gland. |
The vomer and ethmoid bones form part of the ________. | nasal septum The vomer and ethmoid bones form the bony parts of the nasal septum. The vomer forms the inferior portion of the septum. The perpendicular plate of the ethmoid bone forms the superior portion of the septum. |
What makes up the axial skeleton? | the skull, vertebral column, and rib cage |
The ethmoid bone is composed of all of the following except the ________. | inferior nasal concha |
The suture that connects the two parietal bones together is the ________. | sagittal |
The hyoid bone is unique because it ________. | is the only bone of the body that does not articulate with any other bone |
Which part of the ethmoid bone forms the superior part of the nasal septum? | perpendicular plate |
True / False The frontal bone articulates with the parietal bone by means of the sagittal suture. | False |
True/ False All of the bones of the skull, except the mandible, are united by sutures and are therefore immovable. | True |
True/ False The mastoid sinuses are located at a position in the skull where they are usually free from infections. | False |
True/ False The vomer along with the perpendicular plate of the ethmoid bone forms the bony part of the nasal septum. | True |
True/ False The temporal bone connects to the zygomatic bone via the temporal process of the temporal bone. | False |
True/ False The largest and strongest bone of the face is the maxilla. | False (Mandible) |
True/ False The pituitary gland is housed in a saddle-like depression in the temporal bone called the sella turcica. | False |
The bones in the skull have many different names but what are the boundaries of each bone? Where do they start and stop? | Bones of the skull are separated by immobile joints called sutures. |
Which of the following can be considered a function of the paranasal sinuses? | Sinuses take away a minimal amount of strength from bones while reducing the weight of bones. |
Which of the bones of the skull would you also refer to as a cheekbone? | the zygomatic bone |
Which of the following would be most associated with housing the special sense organs? | the temporal bones |
Which of the following would be most associated with process of warming, humidifying, and filtering the air we inhale? | the nasal cavity |
Which is the best description for the function of the cranial bones? | protect the brain |
The sphenoid bone is sometimes referred to as a "key stone" of the skull. This is due to the fact that ________. | the sphenoid is in the center of the skull and it articulates (joins) with all of the other bones of the skull (excluding the mandible) |
The sella turcica is part of the ________ bone and houses the ________ gland. | Sphenoid; pituitary |
The hypothalamus is a region of the brain controlling many aspects of the endocrine system. It works closely with the pituitary gland. The hypothalamus is directly superior to the pituitary and is, therefore, ________. | superior to the sella turcica |
The axial skeleton includes _________. | the skull, vertebral column and rib cage. |
The suture that is found where a parietal and temporal bone meet on the lateral aspect of the skull is ________. | squamous |
The hyoid bone is unique because it ________. | is the only bone of the body that does not articulate with any other bone. |
Paranasal sinuses are found in which of these facial bones? | maxillae |
How many bones make up the adult skull? | 22 |
What is the major function of the axial skeleton? | provide central support for the body and protect internal organs |
which bone forms the anterior cranium? | frontal bone |
The superior orbital fissure is formed in the sphenoid bone, whereas the inferior orbital fissure is formed between the sphenoid and ________. | maxilla |
The superior nasal concha is a part of which bone? | ethmoid |
Which part of the ethmoid bone forms the superior part of the nasal septum? | perpendicular plate |
True/ False The vertebral column is held in place primarily by the anterior and posterior longitudinal ligaments. | True |
True/ False The lacrimal bone contains a groove that forms part of lacrimal fossa. Along with the soft tissue of the lacrimal sac, these structures drain tears from the eye into the nasal passage. | True |
True/ False There are seven cervical, twelve thoracic, and five lumbar vertebrae. | True |
True/ False Lordosis affects the thoracic vertebrae. | False |
True/ False All vertebrae possess a body, a spine, and transverse foramina. | False |
True/ False The dens articulates with the occipital bone. | False dens "projects" from the axis |
Curvatures of the spine serve the body by ________. | giving additional springiness and flexibility to the spine which absorbs shock |
When looking at the range of motion of the various sections of the vertebral column the ________ has the most flexibility. | cervical spine |
The range of motion as well as the direction of motion for the various regions of the spine differs. This is due to variation in ________. | For example, the lumbar spine is capable of flexion and extension but little rotational movement, while the thoracic spine rotates with little flexion or extension. This is due to variation in ________. |
Which vertebra does NOT have a body? atlas axis last lumbar last cervical | atlas |
Along with support, the anterior longitudinal ligament of the vertebral column also acts to ________. | prevent hyperextension of the spine. |
What are the major functions of the intervertebral discs? | to absorb shock and provide flexibility to the spine. |
Which of the following is an abnormal lateral curvature of the vertebral column often seen in the thoracic region? | scoliosis |
Which part of the vertebral column receives the most stress by bearing most of the weight of the body? | the lumbar region |
Thoracic vertebrae differ from the other vertebrae in that they have ________. | costal facets |
Which of the following is the normal curve often seen in pregnant women as they attempt to preserve their center of gravity toward the end of the pregnancy? | lordosis |
How are thoracic vertebrae 11 and 12 different from the other vertebrae? | The transverse processes do not have facets that articulate with the tubercles of the ribs. |
The pelvic girdle does NOT include the ________. pubis femur Ischium Ilium | femur |
Which of the following is NOT a movement that can occur between vertebrae? lateral flexion rotation supination flexion and extension | supination |
True/ False Costal cartilages join most ribs to the sternum. | True |
True/ False The tubercle of a rib articulates with the transverse process of a vertebra. | True |
The term vertebrochondral ribs refers to the "false ribs", that attach to each other before they attach to the sternum. | True |
The anatomy of the thoracic cage provides ridged support and protection but at the same time is also flexible and mobile. Of the list below, which feature does NOT aid in the flexibility and movement of the thoracic cage? | the jugular notch |
True/ False The shallow socket of the shoulder joint restricts dislocation of the humerus and is the main contributor to the stability of the joint. | False |
The glenohumeral joint that articulates the humerus to the pectoral girdle is a highly mobile joint. This mobility comes at a cost because ________. | the joint is relatively unstable and can easily dislocate |
From the list below, select the least likely explanation for the relatively high mobility of the arms. | The subscapular notch is a passageway for nerves. |
True/ False The most common site of fracture in the humerus is the surgical neck which is distal to the anatomical neck. | True |
True/ False In the anatomical position, the lateral forearm bone is the radius. | True |
The proximal end of the ulna illustrates the relationship of form and function. The rounded trochlear notch articulates with the hourglass shape of the trochlea. This forms a joint that allows for ________. | the hinge like motion of the forearm |
The proximal end of the radius illustrates the relationship of form and function. The cup-like surface of the radial head articulates with the rounded shape of the capitulum. This forms a joint that allows for ________. | the rotational motion of the forearm |
The antebrachium is composed of which of the following two bones? | the radius and the ulna |
The "true wrist" or carpus consists of ________. | a group of eight short bones united by ligaments |
True/ False n women of childbearing age, the dimensions of the true pelvis are of utmost importance. | True |
True/ False The ischium articulates with both the ilium and the pubis forming the acetabulum. | True |
True/ False The femur is the largest and strongest bone in the body. | True |
True/ False Most of the body's weight is carried by the talus and calcaneus. | True |
Which bone is in direct contact with the first metatarsal? | medial cuneiform |
Which of the following bones is NOT weight bearing? femur talus tibia fibula | Fibula |
Which portion of the fibula articulates with the talus? | lateral malleolus |
How many lumbar vertebrae are there in a typical adult skeleton? | five |
If a herniated disc in the lumbar region is treated by surgically removing the intervertebral disc and doing a bone graft between the adjoining vertebrae, one of the consequences might be _________. | reduced flexibility of the spine in the lower back |
_________: These bones have the thickest centrum with short blunt spinous processes. | Lumbar vertebrae |
_________: The fused rudimentary tailbone. | Coccyx |
_________: A circle of bone that articulates superiorly with the occipital condyles. | Atlas |
_________: These bones have articular facets for the ribs. | Thoracic vertebrae |
_________: Allows the head to nod "yes." | Atlas |
_________: Allows the head to nod "no." | Axis |
What is the major function of the intervertebral discs? | absorb shock |
When you hit your elbow and say that you hit your "funny bone," you have actually hit a nerve that runs across the bone surface. Over which bone can this nerve be found? | humerus |
Most facial bones articulate with the ______. | maxillary bones |
How many lumbar vertebrae are there in a typical adult skeleton? | 5 vertebrae |
How many thoracic vertebrae are there in a typical adult skeleton? | 12 vertebrae |
How many cervical vertebrae are there in a typical adult skeleton? | 7 vertebrae |
Which bone acts as a brace to hold the arms out and away from the body? | clavicle |
Which nerve that runs behind the medial epicondyle of the humerus at its distal end (at the elbow) is the cause of the painful, tingling sensation you experience when you hit your "funny bone"? | ulnar nerve |
How are the male and female pelves different? | The pelvic inlet in males is heart-shaped. |
Qualities of a female pelvis. | Modified for child-bearing and is wider, shallower, and lighter |
Qualities of a male pelvis. | Has thicker/heavier bones with more prominent bone markings; acetabula that are larger and closer together; and a narrower, heart-shaped pelvic inlet |
What structures allow the infant's head to be compressed slightly during birth and accommodate brain growth in the fetus and infant? | fontanelles |
Since mastoid infections may spread to the brain, surgical removal of the mastoid process was once considered to be the best way to prevent brain inflammation. Unfortunately, this also had the side-effect of causing ____________. | impaired head and neck movements |
the origin for the sternocleidomastoid muscle, which unilaterally, draws the head toward the ipsilateral shoulder and rotates head to the opposite side and, bilaterally, flexes the neck | the region of the temporal bone |
During cardiopulmonary resuscitation (CPR), it is important to place the compression hands over the sternal body but not over the xiphoid process so that _________. | There is little risk of physically damaging the heart. |
During CPR, the heart is compressed between which two bones? | sternum and spine. When done properly, the heart never comes into direct contact with any bony prominence that could cause severe cardiac trauma. |
People who work at computer keyboards all day repeatedly flex their wrists and fingers and therefore become susceptible to carpal tunnel syndrome, a condition in which inflammation of tissue causes tingling and pain. | Which one of the following treatments will be least likely to reduce the pain? |
True or False The most common site of fracture in the humerus is the anatomical neck. | False surgical neck |
Which forms the largest portion of the coxal bone? | ilium |
Functional classification of joints is based on ________. | the amount of movement allowed by the joint |
Structural classification focuses on ________. | the material binding the bones together, and whether a joint cavity is present. |
Which of the following does not represent a structural classification of joints? a) Cartilaginous b) Diarthroses c) Synovial d) Fibrous | Diarthrosis |
Articulations permitting only slight degrees of movement are ________. | amphiarthroses |
In the classification of joints, which of the following is true? | All synovial joints are freely movable. |
T/F The structural classification of joints is based on the composition of the binding material and the presence or absence of a joint cavity. | True |
Diarthrotic describes _________ . | freely movable joints such as those formed by synovial joints. |
On the basis of structural classification, which joint is fibrous connective tissue? | syndesmosis |
Fibrous joints are classified as ________. | sutures, syndesmoses, and gomphoses |
Using the structural classification, what type of joint is the epiphyseal plate? | cartilaginous joint |
A joint united by dense fibrocartilaginous tissue that usually permits a slight degree of movement is a ________. | symphysis |
Which of the following statements defines synchondroses? | cartilaginous joints where hyaline cartilage unites the ends of bones |
Multiaxial joints of the body include ________. | the hip and shoulder |
The ______ and carpometacarpal joints of the palm (and equivalents in the foot) form plane joints that allow for only short nonaxial gliding movements. | intercarpal |
The thumb joint mediates which of the following special movements? | opposition |
Which of the following is NOT a factor that contributes to joint stability? | amount of synovial fluid in the joint cavity |
Which of the following is one difference between bursae and tendon sheaths? | Bursae are flattened fibrous sacs wedged between adjacent structures, while tendon sheaths are elongated fibrous sacs that wrap around tendons. |
The shoulder and hip are examples of ________. | ball-and-socket joints |
T/F The origin of a muscle is attached to the movable bone. | False The origin is attached to the immovable or less movable bone; the insertion is attached to the movable bone. |
Which movement increases the angle between articulating bones? | extension |
Which joint has sacrificed stability to provide great freedom of movement? | shoulder |
Connective tissue sacs lined with synovial membranes that act as cushions in places where friction develops are called ________. | bursae |
What are menisci? | semilunar cartilage pads |
What is moving a limb away from the median plane of the body along the frontal plane called? | abduction |
The terms inversion and eversion pertain only to the ________. | feet |
Pointing the toes is an example of ________. | plantar flexion |
T/F. The only movement allowed between the first two cervical vertebrae is flexion. | False |
T/F Supination is the movement of the forearm in which the palm of the hand is turned from posterior to anterior. | True |
T/F. Flexion of the ankle so that the superior aspect of the foot approaches the shin is called dorsiflexion. | True |
Extension involves movement along the sagittal plane that increases the angle between the articulating bones and typically straightens a flexed limb or body part. |