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| Question | Answer |
|---|---|
| Skeletal muscles are innervated by: | somatic motor neurons. |
| Rotator cuff surgery is performed quite commonly on professional baseball players, especially pitchers. Evidently, the throwing motion places enormous stress on the: | shoulder |
| Which joint allows for the most movement | Ball and socket |
| Which type of muscle is responsible for peristalsis? | Single-unit smooth |
| The purpose of creatine phosphate in muscle contraction is to: | replenish energy supply. |
| All of the following are characteristics of smooth muscle except: | thin and thick filaments are aligned in sarcomeres like skeletal muscles. |
| A condyloid joint is an example of a(n) _____ joint. | biaxial |
| A slight shift away from the resting membrane potentials in a specific region of the plasma membrane is called a _____ potential. | local |
| The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): | enkephalins |
| Severe depression can be caused by a deficit in certain brain synapses of: | amines |
| A term commonly used as a synonym for action potential is | nerve impulse. |
| Excitatory neurotransmitters are most likely to: | initiate an action potential. |
| Dopamine, epinephrine, and norepinephrine are classified as: | catecholamines |
| The brief period during which a local area of an axon's membrane resists re-stimulation is called the __________ period. | refractor |
| The only ion(s) that can diffuse across a neuron’s membrane when the neuron is at rest is (are): | potassium |
| Compared with the outside of the neuron, the inside has a(n) ____ charge. | negative |
| There are two types of synapses—the electrical synapse and the __________ synapse. | chemical |
| The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? | Almost 300 times faster |
| Somatic motor and autonomic pathways share all of the following characteristics except: | number of neurons between central nervous system (CNS) and effector. |
| Norepinephrine is liberated at: | most sympathetic postganglionic nerve endings. |
| The cerebellum performs all of the following functions except: | controls cardiac function. |
| Cerebrospinal fluid is formed by filtration of blood in the: | choroid plexuses. |
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