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Anatomy
Week 6-12
| Question | Answer |
|---|---|
| This arrangement of muscle fascicles tends to be triangular in shape. The Pectoralis major is an example of a muscle with this type of muscle fascicle arrangement. | convergent |
| The individual muscle fibers are covered by a connective tissue membrane called the | endomysium |
| There are more than 600 muscles in the body T/F | True |
| 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? | Femoris |
| Muscles that contract at the same time as the prime mover are called: | synergists and fixators. |
| 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. |
| Which of the following is not a muscle of the quadriceps femoris group? | Biceps femoris |
| Which of the following is not a posterior muscle that acts on the shoulder girdle? | Pectoralis minor |
| The sternocleidomastoid muscle is an example of a muscle named for its: | points of attachment |
| The teres major and teres minor muscles move the: | arm |
| What structure of the Schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | neurilemma |
| The structural and functional center of the entire nervous system is the _____ nervous system. | central |
| The somatic nervous system carries information to the | skeletal muscles |
| Identify which letter represents an oligodendrocyte. | E |
| In the human nervous system: | there are almost equal numbers of glia cells and neurons. |
| Astrocytes attach to: | neurons and blood vessels |
| The nervous system can be divided: | according to its structure, according to direction of information flow, by control of effectors. |
| Dendrites and cell bodies of sympathetic preganglionic neurons are located in the | gray matter of the thoracic and upper lumbar segments of the spinal cord. |
| The lower end of the spinal cord, with its attached spinal nerve roots, gives the appearance of a horse’s tail called the | cauda equina |
| The autonomic nervous system includes only efferent neurons T/F | False |
| All cell bodies of the autonomic nervous system are located within the CNS. T/F | False |
| Which of the following is not a plexus of the spinal nerves? | Thoracic |
| Effectors that have single innervation by the autonomic nervous system are innervated only by the parasympathetic division. T/F | False |
| The peripheral nervous system includes: | only cranial nerves, spinal nerves, and their branches. |
| The innermost layer of the meninges is the: | pia mater. |
| Which of the following cranial nerves is responsible for movements of the tongue? | Hypoglossal |
| Some parasympathetic postganglionic neurons have their cell bodies in nuclei in the brainstem. T/F | False |
| Endolymph is made | in the stria vascularis. |
| The basilar membrane supports the | spiral organ |
| Fluid filling the posterior segment of the eye. | vitreous humor |
| Class of hormones secreted during chronic stress that depress immune function. | glucocorticoids |
| The hormone produced by the heart | increases the excretion of sodium in the urine. |
| Which two factors promote the return of venous blood to the heart? | blood-pumping action of respirations and skeletal muscle contractions |
| Platelets play an important role in | blood clotting. |
| The outermost layer of the larger blood vessels is the tunica | adventitia. |
| The _____ is(are) supplied with blood from the left subclavian artery. | head and upper extremities |
| Which division of the autonomic nervous system sends fibers to the heart? | sympathetic and parasympathetic |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? | It flows into the inferior vena cava |
| Recognition of antigens by antibodies occurs when an | Antigen's epitopes fit into and bind to an antibody molecule's antigen-binding sites |
| The functions of the lymph nodes are | defense and hematopoiesis. |
| Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a | germinal center. |
| Recognition of antigens by antibodies occurs when an | Antigen's epitopes fit into and bind to an antibody molecule's antigen-binding sites |
| The functions of the lymph nodes are | defense and hematopoiesis. |
| Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a | germinal center |
| An inflammation of the lower respiratory tract that involves the airways of the lungs is called | pneumonia. |
| The vibrissae function as | filters, baffles, producers of mucus. |
| Olfactory epithelium is found: | covering the superior turbinate. |
| In the right lung, the superior and middle lobes are separated by the: | horizontal fissure. |
Created by:
mcossey2001
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