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Chapter 13 Part 2
Questions
12
Anatomy
Undergraduate 2
04/28/2009

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Term
What does the hypothalamus control?
Definition
(1) heart activity and blood pressure (2)body temperature, water balance, and endrocrine activity (3)emotional stages (rage, pleasure) and biological drives (hunger, thrist, sex) (4)reactions to fear and the fight or flight system
Term
Which system consists of motor neurons that innervate smooth and cardiac muscle and glands?
Definition
ANS
Term
Name the five components of the reflex arc.
Definition
receptor, sensory neuron, integration center, motor neuron, effector
Term
What are the three main levels of neural integration in the somatosensory system?
Definition
receptor level, circuit level, preceptual level
Term
How many mixed pairs of spinal nerves are there?
Definition
31
Term
Name the spinal cords according to their point of issue.
Definition
8 cervical C1-C8; 12 thoracic T1-T12; 5 lumbar L1-L5; 5 sacral S1-S5; 1 Coccygeal C0
Term
Which nerve is the major motor and sensory nerve of the diaphram?
Definition
phrenic nerve
Term
What is the major nerve in the sacral plexus?
Definition
sciatic
Term
Can be somatic(actiate skeletal mucles) or autonomic (viseral - activate smooth or cardiac muscle or glands)
Definition
reflexes
Term
Name the 3 simple receptors that are inencapsulated.
Definition
(1)Free nerve endings of sensory neurons (2) modified free nerve endings' Merkel discs (tactile discs) (3) Hair follicle receptors
Term
Name the 6 simple receptors that are encapsulated.
Definition
(1) Meissner's corpuscles (tactile corpuscles (2) pacinian corpuscles (lamellated corpuscles) (3) Ruffini endings (4) muscle spindles (5) golgi tendon organs (6) joint kinesthetic receptors
Term
Do CNS fibers regenerate?
Definition
No, damage the to brain or spinal cord is irreversible
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