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skeletal terms
Question | Answer |
---|---|
musculoskeletal system is made up of 2 systems | muscles and bones |
there are how many bones in the body | 206 |
there are how many muscles in the body | 600 |
what are the skeletal system jobs | protect, frame, store calcium, and produce rbc's |
parts and structure of a long bone | DIAPHYSIS- shaft the middle PERIOSTEUM-the outer most part-fibrous tissue COMPACT BONE- under periosteum-hard layers CANCELLOUS BONE-spongy bone ENDOSTEUM-membrane-hollow bone BONE MARROW- red and yellow |
maxilla | upper jaw bone |
mandible | lower jaw |
vertebral column | spinal cord |
cervical vertebrae | c1 - c7 |
thoracic vertebrae | t1- t12 |
lumbar vertebrae | l1- l5 |
sacrum | after lumbar 5 the next 5 vertebrae fuse together to form a triangle bone between the two hip bones |
coccyx | 4 vertebrae fuse together to form the tailbone |
lamina | part of the vertebrae arch |
clavicle | collarbone |
scapula | shoulder blade |
acromion process | high point of the shoulder or scapula |
sternum | breastbone |
xiphoid process | lower portion of the sternum |
humerus | upper arm bone |
ulna and radius | lower arm bones |
olecranon process | projection at the upper end of the ulna that forms the bony point of the elbow |
carpals | wrist bones |
metacarpals | hand bones |
phalanges | finger and toe bones |
phalanges | finger and toe bones |
pelvic bone | made up of 3 bones- ISCHIUM, ILIUM, PUBIS |
musculoskeletal system is made up of 2 systems | muscles and bones |
there are how many bones in the body | 206 |
there are how many muscles in the body | 600 |
what are the skeletal system jobs | protect, frame, store calcium, and produce rbc's |
parts and structure of a long bone | DIAPHYSIS- shaft the middle PERIOSTEUM-the outer most part-fibrous tissue COMPACT BONE- under periosteum-hard layers CANCELLOUS BONE-spongy bone ENDOSTEUM-membrane-hollow bone BONE MARROW- red and yellow |
maxilla | upper jaw bone |
mandible | lower jaw |
vertebral column | spinal cord |
cervical vertebrae | c1 - c7 |
thoracic vertebrae | t1- t12 |
lumbar vertebrae | l1- l5 |
sacrum | after lumbar 5 the next 5 vertebrae fuse together to form a triangle bone between the two hip bones |
coccyx | 4 vertebrae fuse together to form the tailbone |
lamina | part of the vertebrae arch |
clavicle | collarbone |
scapula | shoulder blade |
acromion process | high point of the shoulder or scapula |
sternum | breastbone |
xiphoid process | lower portion of the sternum |
humerus | upper arm bone |
ulna and radius | lower arm bones |
olecranon process | projection at the upper end of the ulna that forms the bony point of the elbow |
carpals | wrist bones |
metacarpals | hand bones |
phalanges | finger and toe bones |
phalanges | finger and toe bones |
pelvic bone | made up of 3 bones- ISCHIUM, ILIUM, PUBIS |
ISCHIUM | LOWER, REAR PORTION OF THE PELVIC BONE |
ilium | upper wing shaped portion of the pelvic bone |
pubis | anterior portion of the pelvic bone |
acetabulum | lg socket in the pelvis bone for the head of the femur |
femur | large upper leg bone |
tibia and fibula | lower leg bones |
patella | knee cap |
tarsals | ankle bones |
calcaneus | heel bone |
metatarsal | foot bones |
articular cartilage | smooth layer of gristle covering the contacting surface of joints for protection of bones |
meniscus | crescent shaped cartilage found in the knee |
intervertebral disk | a small pad of cartilage found between each vertebrae in the spine that acts as a cushion and shock absorber |
pubis symphysis | cartilaginous joint at which 2 pubic bones fuse together |
synovia | fluid secreted by the synovial membrane and found in a joint cavities |
bursa | |
ligament | flexible tough band of fibrous connective tissue that attaches one bone to another at a joint |
tendon | band of fibrous connective tissue that attaches muscle to bone |
aponeurosis | a strong sheet of tissue that acts as a tendon to attach muscle to bone |
there are 3 types of muscles | 1. skeletal 2. smooth 3. cardiac |