BIO 137 EXAM WITH QUESTIONS AND ANSWERS
An action potential never occurs in dendrites. True or False - -True
-Between what two structures does a cross-bridge form? - -B & C
-Cross bridges form between binding sites on actin myofilaments and __________. - -myosin heads
-Degeneration of the neurons in which of the following structures leads to the muscle tremors
associated with Parkinson disease? - -Substantia nigra
-From superficial to deep, the meninges occur in which order? - -Dura mater, arachnoid, pia mater
-Loss of equilibrium and motor coordination would most likely be related to a lesion in which structure?
- -Cerebellum
-Muscle fibers are arranged in bundles called ___________. - -fascicles
-Name the part of the axon labeled 4. - -node of ranvier
-Name the part of the neuron labeled 1. - -dendrites
-Name the part of the neuron labeled 2. - -soma
-Name the part of the neuron labeled 3. - -nucleus
-Nonfluent aphasia, due to a lesion in the __________, results in slow speech, difficulty in choosing
words, or use of words that only approximate the correct word. - -Broca area
-Planning, motivation, and social judgment are functions of the brain associated with which part of the
cerebrum? - -Frontal lobe
-Sex drive, body temperature, and food and water intake are regulated by which part of the brain? - -
Hypothalamus
-Skeletal muscle is called ___________, because it is usually subject to conscious control. - -voluntary
-The cerebrum exhibits folds called gyri separated by grooves called sulci. True or False - -True
-The nervous system employs exclusively electrical means to send messages, whereas the endocrine
system communicates by means of chemical messengers. True or False - -False
-The process of engaging more motor units to increase the strength of a muscle contraction is called
__________. - -recruitment
-The right and left cerebral hemispheres are separated from each other by __________. - -the
longitudinal fissure
An action potential never occurs in dendrites. True or False - -True
-Between what two structures does a cross-bridge form? - -B & C
-Cross bridges form between binding sites on actin myofilaments and __________. - -myosin heads
-Degeneration of the neurons in which of the following structures leads to the muscle tremors
associated with Parkinson disease? - -Substantia nigra
-From superficial to deep, the meninges occur in which order? - -Dura mater, arachnoid, pia mater
-Loss of equilibrium and motor coordination would most likely be related to a lesion in which structure?
- -Cerebellum
-Muscle fibers are arranged in bundles called ___________. - -fascicles
-Name the part of the axon labeled 4. - -node of ranvier
-Name the part of the neuron labeled 1. - -dendrites
-Name the part of the neuron labeled 2. - -soma
-Name the part of the neuron labeled 3. - -nucleus
-Nonfluent aphasia, due to a lesion in the __________, results in slow speech, difficulty in choosing
words, or use of words that only approximate the correct word. - -Broca area
-Planning, motivation, and social judgment are functions of the brain associated with which part of the
cerebrum? - -Frontal lobe
-Sex drive, body temperature, and food and water intake are regulated by which part of the brain? - -
Hypothalamus
-Skeletal muscle is called ___________, because it is usually subject to conscious control. - -voluntary
-The cerebrum exhibits folds called gyri separated by grooves called sulci. True or False - -True
-The nervous system employs exclusively electrical means to send messages, whereas the endocrine
system communicates by means of chemical messengers. True or False - -False
-The process of engaging more motor units to increase the strength of a muscle contraction is called
__________. - -recruitment
-The right and left cerebral hemispheres are separated from each other by __________. - -the
longitudinal fissure
