Anatomy & Physiology 2 EXAM 1 KEISER Latest Update 2025-2026 Exam 70 Questions with 100% Verified Correct Answers Guaranteed A+
Alpha waves - CORRECT ANSWER: Occurs when awake, resting with eyes open
Beta waves - CORRECT ANSWER: Eyes open, performing internal tasks
Delta waves - CORRECT ANSWER: Deep sleep
How many spinal nerves are there? - CORRECT ANSWER: 31 pairs of spinal nerves
arise from cervical, thoracic, lumbar and sacral regions of the cord
Theta waves - CORRECT ANSWER: Sleep of emotional stress
What affects speed of nerve transmission? - CORRECT ANSWER: -Depends on
size/diameter and whether it's myelinated -Faster signals will be large and be myelinated -Slowest signals will be small and unmyelinated
What are adrenergic receptors? - CORRECT ANSWER: Alpha adrenergic receptors
often excitatory
Beta adrenergic receptors often inhibitory
What are astrocytes? - CORRECT ANSWER: Most abundant glial cells
Form framework of CNS Contribute to BBB 1 / 2
Replaces damaged neurons with hardened mass of astrocytes
What are nicotinic receptors? - CORRECT ANSWER: On all ANS postganglionic
neurons In the adrenal medulla and neuromuscular junctions (skeletal muscle) Excitatory when Ach binding occurs
What are parasympathomimetics? - CORRECT ANSWER: "Downers"
Heroin/opium Alcohol
What are phrenic nerves? - CORRECT ANSWER: Apart of the cervical plexuses
Consists of C3 C4 C5 Keeps diagram alive
What are sympathomimetics? - CORRECT ANSWER: "Uppers"
Cocaine Methamphetamine Caffeine Nicotine
What are the cerebral hemispheres? - CORRECT ANSWER: Left brain
Right brain Separated by longitudinal fissure
What are the four brain waves? - CORRECT ANSWER: alpha, beta, theta, delta
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