Upper motor neurons
A. are found in the visual cortex.
B. control skeletal muscles.
C. are responsible for planning voluntary movements.
D. are located in the prefrontal area.
E. control smooth muscle.
B
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Cardiac muscle has more mitochondria and depends less on a continual supply of oxygen than does skeletal muscle.
a. true b. false
This portion of the brain secretes the hormone melatonin, which helps to regulate the body's circadian rhythm
A. Habenular nucleus B. Anterior nucleus C. Pineal gland D. Mammillary body E. Paraventricular nucleus
Stimuli produced by sound waves reach the brain following which pathway?
A) Cochlear duct ? oval window ? auditory canal ? tympanic membrane ? ossicles ? spiral organ ? fibers of cochlear nerve B) Auditory canal ? tympanic membrane ? ossicles ? oval window ? cochlear duct ? spiral organ ? fibers of cochlear nerve C) Auditory canal ? tympanic membrane ? oval window ? cochlear duct ? ossicles ? spiral organ ? fibers of cochlear nerve D) Tympanic membrane ? auditory canal ? ossicles ? oval window ? cochlear duct ? spiral organ ? fibers of cochlear nerve E) Cochlear duct ? spiral organ ? ossicles ? oval window ? auditory canal ? tympanic membrane ? fibers of cochlear nerve
Peroxisomes are most closely related to
A) mitochondria. B) nuclei. C) nucleoli. D) Golgi apparati. E) lysosomes.