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BIO 141 Final Exam (3)
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BIO 141 Final Exam (3)
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BIO 141 Final Examautonomic nervous system - CORRECT ANSWER-the part of the peripheral
nervous system that controls the glands and the muscles of the internal organs
(such as the heart). Its sympathetic division arouses; its parasympathetic division
calms.
visceral reflex arc - CORRECT ANSWER-receptors, afferent neurons,
interneurons, efferent neurons, effectors
afferent neurons - CORRECT ANSWER-Nerve cells that carry impulses towards
the central nervous system
efferent neurons - CORRECT ANSWER-neurons that take information from the
brain to the rest of the body
Which houses motor neurons? - CORRECT ANSWER-anterior root of spinal
nerve
The sympathetic nervous system and parasympathetic nervous system are
divisions of the __________. - CORRECT ANSWER-visceral motor division
(autonomic nervous system)
Which division detects stimuli of the general senses and special senses? -
CORRECT ANSWER-Somatic sensory division
Where does the motor portion of the facial nerve (VIII) originate? - CORRECT
ANSWER-Nuclei in the pons and medulla
Which cranial nerve is generally thought of as a mixed nerve? - CORRECT
ANSWER-Glossopharyngeal nerve (IX)
Which nerve innervates most of the intrinsic and extrinsic muscles of the tongue?
- CORRECT ANSWER-Hypoglossal nerve (XII)
What cranial nerve contains axons of motor neurons? - CORRECT
ANSWER-Trochlear nerve (IV)
, What is the connective tissue sheath that surrounds a peripheral nerve? -
CORRECT ANSWER-Epineurium
What two nerves do not arise from the brain stem? - CORRECT
ANSWER-Olfactory and optic nerves
Which somatic motor neuron innervates the lateral rectus muscle? - CORRECT
ANSWER-Abducens nerve (VI)
What connective tissue sheath wraps the axon of a neuron? - CORRECT
ANSWER-Endoneurium
Which branch is not part of the trigeminal nerve? - CORRECT ANSWER-Buccal
nerve
What receptors would detect a temperature of 52°C? - CORRECT
ANSWER-Nociceptors
Sensory transduction occurs in __________. - CORRECT ANSWER-PNS
sensory neurons
Which of the following nerves does not originate from the brachial plexus? -
CORRECT ANSWER-Phrenic nerve
Which component of a somatic sensory neuron transmits an action potential from
the peripheral process to the posterior horn? - CORRECT ANSWER-Central
process
The _________ nerve is the largest nerve from the posterior division, and of the
lumbar plexus. - CORRECT ANSWER-femoral
What sensory receptor is responsible for detecting the hydrogen ion
concentration in the body's fluids? - CORRECT ANSWER-Chemoreceptor
What is the function of the Golgi tendon reflex? - CORRECT ANSWER-prevents
contracting muscles from applying excessive tension to tendons
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