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Nicole Jackson
Anatomy Week 6-12
| Question | Answer |
|---|---|
| Muscles that move the wrist, hand, and fingers can be | extrinsic or intrinsic. |
| The term _____ is used to describe a muscle that directly performs a specific movement. | agonist |
| The latissimus dorsi muscle is an example of a _____ muscle. | spiral |
| Skeletal muscles constitute approximately ____ of our body weight | 50% |
| The most common type of lever in the body is a _____-class lever. | third |
| The action of the brachialis muscle is to _____ the forearm. | flex |
| 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 _____ of a neuron is a single process that usually extends from a tapered portion of the cell body. | axon |
| Which of these glia cells are located in the peripheral nervous system? | Schwann cells |
| What term describes the bundles of nerve fibers within the central nervous system? | tracts |
| Gray matter in the brain and spinal cord consists primarily of: | ell bodies. |
| Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: | a neurilemma. |
| The autonomic nervous system does not stimulate: | skeletal muscles. |
| The lymphatic system, like the circulatory system, is a closed circuit. | true |
| The white matter of the nervous system is made up of: | myelinated fibers. |
| In the human nervous system: | there are almost equal numbers of glia cells and neurons. |
| Spinal cord tracts provide conduction paths to and from the brain. The tracts that conduct sensory impulses down the cord from the brain are called _____ tracts. | descending |
| The enteric nervous system is made up of a complex network of nerve plexuses that control the visceral effectors in the | intestinal wall. |
| All cell bodies of the autonomic nervous system are located within the CNS. | False |
| The brain has _____ major divisions. | six |
| One bundle of nerve fibers (nerve roots) projects from each side of the spinal cord. | False |
| Small branches from the cervical plexus join which two cranial nerves? | Hypoglossal and accessory |
| During fetal circulation, what opening in the septum, between the right and left atria, directs most of the blood so that it bypasses the fetal lungs? | foramen ovale |
| The four structures that compose the conduction system of the heart are the | SA node, AV node, AV bundle, and Purkinje fibers. |
| The outermost layer of the larger blood vessels is the tunica | adventitia. |
| The breast—the mammary gland and surrounding tissue—is drained by the: | Both A and B are correct. |
| The size of lymph nodes varies from _____ mm to more than _____ mm in diameter. | 1; 20 |
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