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ANATOMY @ 2
Final Exam Preparation for Anatomy @ 2
| Question | Answer |
|---|---|
| The muscle that helps hold the scapula against the thorax and is useful in pushing or punching movements is the | serratus anterior. |
| The fibrous connective tissue that surrounds the entire muscle and is outside the epimysium and tendon is called the | fascia. |
| The innermost muscle of the abdominal wall is the | transverse abdominis. |
| The common tendon of the gastrocnemius and soleus is called the | calcaneal tendon. |
| The Sartorius muscle, a thin straplike muscle would have muscle fascicles arranged in | parallel. |
| The biceps brachii has this fascicle arrangement, which maximizes the range of motion possible. | parallel |
| The individual muscle fibers are covered by a connective tissue membrane called the | endomysium. |
| The origin of a muscle is on the femur, and the insertion is on the tibia. When it contracts, it bends the knee. Its fibers run parallel to the body. Which of the following terms might be part of its name? | Flexor |
| Which of the following is not a muscle of the quadriceps femoris group? | Biceps femoris |
| The soleus muscle is an example of a _____ muscle. | pennate |
| In pushing (pressing) a weight from shoulder height to above the head, which of the following muscles is least utilized? | Biceps brachii |
| The action of the brachialis muscle is to _____ the forearm. Correct! flex | flex |
| When an athlete injures a muscle of the hamstring group, the injury is on the: | posterior thigh. |
| Which of the following is not a muscle that moves the foot? | Sartorius |
| Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the: | perimysium. |
| Which of the following is not a muscle that moves the thigh? | Sacrospinalis |
| Which of the following statements about the muscles of the thorax is incorrect? | When the diaphragm contracts, it decreases the volume of the thoracic cavity and expels air from the lungs. |
| The muscle(s) assisting in rotating the arm outward is (are) the: | teres minor. |
| The latissimus dorsi muscle is an example of a _____ muscle. | spiral |
| Which of the following statements about the muscles of the head is incorrect? | The splenius capitis muscle is sometimes called the prayer muscle because it causes the head to bow. |
| Which of the following muscles does not move the upper arm? | Trapezius |
| A muscle is attached to the femur and tibia. Its function or action is to bend the knee. When it contracts, it is acting as the: | prime mover. |
| Which of the following is not a group of pennate muscles? | Tripennate |
| The muscle that raises or lowers the shoulders or shrugs them is the: | trapezius. |
| The muscle that flexes the semipronated or semisupinated forearm is the: | brachioradialis. |
| The teres major and teres minor muscles move the: | arm. |
| A signal conduction route to and from the central nervous system is a(n) | reflex arc. |
| What term describes the bundles of nerve fibers within the central nervous system? | tracts |
| What structure of the Schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | neurilemma |
| Which of these glia cells are located in the peripheral nervous system? | Schwann cells |
| The ________ of a presynaptic neuron associates with the dendrite of a postsynaptic neuron. | axon terminal |
| These regions of the neuron direct electrical currents toward the cell body. | dendrite |
| The _____ nervous system is a complex network of nerve pathways embedded in the intestinal wall with a network of integrators and feedback loops that can act somewhat independently. | enteric |
| The glia cells that help form the blood-brain barrier are the | astrocytes. |
| Bundles of myelinated fibers make up the | white matter of the nervous system. |
| Neurons have | very limited capacity to repair themselves. |
| Fascicles are held together by a connective tissue layer called the: | perineurium. |
| In the human nervous system: | there are almost equal numbers of glia cells and neurons. |
| Most unipolar neurons are usually: | sensory neurons. |
| A neuron that transmits a nerve impulse toward the central nervous system is called a(n): | sensory neuron. |
| Which is true of a reflex arc? | It always consists of an afferent neuron and an efferent neuron. |
| The afferent pathways of the autonomic nervous system: | carry feedback information to integrating centers in the brain. |
| The largest and most numerous types of neuroglia are the: | astrocytes. |
| Interneurons reside in the: | CNS only. |
| Gray matter in the brain and spinal cord consists primarily of: | cell bodies. |
| Which is not true of the myelin sheath? | It covers cell bodies in the brain and spinal cord. |
| Small distinct regions of gray matter in the CNS are called: | nuclei. |
| Schwann cells have a function in the PNS that is similar to that of which cells in the CNS? | Oligodendrocytes |
| The white matter of the nervous system is made up of: | myelinated fibers. |
| Nerves that contain mostly afferent fibers are called _____ nerves. | sensory |
| Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: | a neurilemma. |
| Along a neuron, the correct pathway for impulse conduction is: | dendrite, cell body, and axon. |
| Multipolar neurons have | multiple dendrites and one axon. |
| Neurons in the CNS have less chance of regenerating for all of the following reasons except: | microglia lay down scar tissue. |
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alainlemesse
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