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anatomy 6-12
assignment 2 weeks 6-12
| Question | Answer |
|---|---|
| The muscle that flexes the semipronated or semisupinated forearm is the: | brachioradialis. |
| The soleus muscle is an example of a _____ muscle. | pennate |
| The most common type of lever in the body is a _____-class lever. | third |
| Groups of skeletal muscle fibers are bound together by a connective tissue envelope called the: | perimysium. |
| Another name for a skeletal muscle cell is a(n): | muscle fiber. |
| The latissimus dorsi muscle is an example of a _____ muscle. | spiral |
| Dendrites conduct impulses _____ cell bodies. | toward |
| Interneurons reside in the: | CNS only |
| Nerves that contain mostly afferent fibers are called _____ nerves. | sensory |
| One of the components of the blood-brain barrier is: | astrocytes. |
| The largest and most numerous types of neuroglia are the: | astrocytes. |
| The white matter of the nervous system is made up of: | myelinated fibers |
| Small distinct regions of gray matter in the CNS are called: | nuclei |
| A neuron that has only one axon but several dendrites is classified as a _____ neuron. | multipolar |
| The efferent pathways of the autonomic nervous system consist of the ________ nervous systems. | sympathetic and parasympathetic |
| Gray matter in the brain and spinal cord consists primarily of: | cell bodies |
| The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the: | afferent division. |
| The innermost layer of the meninges is the: | pia mater |
| The layer of the meninges that serves as the inner periosteum of the cranial bone is the: | dura mater |
| Several “vital centers” are located in the: | medulla |
| Some parasympathetic postganglionic neurons have their cell bodies in nuclei in the brainstem. | False |
| Visceral effectors are innervated by sympathetic fibers. | True |
| he sensory cranial nerves include only the: | olfactory, optic, and vestibulocochlear. |
| The spinal nerves are connected to the spinal cord and consist of _____ pairs. | 31 |
| Which part of the vertebral column has one more pair of nerves coming from it than it has vertebrae? | Cervical |
| All cell bodies of the autonomic nervous system are located within the CNS. | False |
| Which part of the brain releases the hormone melatonin? | Pineal gland |
| The lumbar plexus gives rise to the _____ nerve. | femoral |
| Parasympathetic neuron cell bodies are located in: | nuclei of the brainstem and the lateral gray columns of the sacral cord. |
| Small branches from the cervical plexus join which two cranial nerves? | Hypoglossal and accessory |
| Region of the hypophysis that contains secretory endocrine cells derived from the oral ectoderm. | adenohypophysis |
| Melanin-containing layer of the eye's vascular tunic. | choroid |
| Receptors for hearing are located in the | cochlear duct. |
| Transparent structure of the eye containing regularly aligned collagen fibers. | cornea |
| Transparent mucous membrane covering the inner surface of the eyelid. | conjunctiva |
| Hormone that inhibits osteoclast activity in children. | calcitonin |
| Pyramid-shaped gland consisting of neural crest-derived cells and endocrine secretory cells. | adrenal gland |
| Bony labyrinth structure containing the utricle and saccule. | vestibule |
| The anatomical stalk of the pituitary is also known as | infundibulum. |
| Endolymph is made | in the stria vascularis. |
| Endocrine gland of the thorax that is also important in immune function. | thymus gland |
| Gel-like structure embedded with the tips of cochlear hair cells. | tectorial membrane |
| The nerve carrying taste information from the anterior two-thirds of the tongue is the | facial. |
| Pancreatic cell type that produces insulin. | beta cells |
| Renal veins drain blood from the | kidneys |
| The brachiocephalic vein drains blood from the | head, neck, and upper extremity. |
| The normal cardiac impulse that initiates mechanical contraction of the heart arises in the | SA node |
| Which layer of the larger blood vessels is made up of endothelium? | tunica intima |
| The _____ drains much of the superficial leg and foot. | great saphenous vein |
| In _____, blood moves from veins to other veins or arteries to other arteries without passing through an intervening capillary network. | vascular anastomoses |
| Mechanical devices that permit the flow of blood in one direction only are called | valves |
| The outermost layer of the larger blood vessels is the tunica | adventitia. |
| The internal iliac artery supplies blood to the | pelvis |
| The _____ is(are) supplied with blood from the left subclavian artery. | head and upper extremities |
| A decrease in the amount of white blood cells is called | leukopenia. |
| Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a | germinal center. |
| The size of lymph nodes varies from _____ mm to more than _____ mm in diameter. | 1; 20 |
| The main difference between the composition of lymph and interstitial fluid and the composition of plasma is the _____ percentage of _____ in lymph and interstitial fluid. | lower; proteins |
| Antibodies are proteins of the family called | immunoglobulins. |
| Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. | cell-mediated |
| The type of immune mechanism that provides a general defense by acting against anything recognized as “not self” is called: | nonspecific immunity. |
| An infection in the thumb may result in enlargement of the _____ nodes. | superficial cubital |
| During their residence in the thymus, pre-T cells develop into _____, cells that proliferate as rapidly as any in the body. | thymocytes |
| The largest of the paranasal sinuses is the: | maxillary |
| The hollow nasal cavity is separated by a midline partition called the: | septum |
| In the right lung, the superior and middle lobes are separated by the: | horizontal fissure. |
| Which of the following is not part of the respiratory membrane? | Ciliated respiratory mucosa |
| The respiratory portion of the nasal passage is lined with a mucous membrane made up of _____ epithelium. | pseudostratified columnar |
| The small, leaf-shaped cartilage behind the tongue and hyoid bone is the: | epiglottis. |
| The structures that deflect air as it passes through the nose are called: | conchae |
| The eustachian tube connects the middle ear with the: | nasopharynx |
| Paranasal sinuses are normally filled with: | air |
| Olfactory epithelium is found: | covering the superior turbinate. |
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