The curvature of the lens must be adjusted to enable the eye to focus both near and far sources on the retina
Indicate whether the statement is true or false
T
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Neurotransmitters are
A) released only at nonvesicular synapses. B) produced by astrocytes. C) stored in synaptic vesicles. D) produced on command. E) never recycled.
Humoral immunity involves the production of chemicals called ____________________, which are released from B lymphocyte derivatives
Fill in the blank(s) with correct word
A football player's arm is dislocated during a tackle. Which of the following muscles was likely injured?
A. Deltoid B. Pectoralis major C. Supraspinatus D. Teres major
Answer the following questions true (T) or false (F)
1. Cerebrospinal fluid increases the buoyancy of the brain so it is not crushed under its own weight. 2. Capillaries in the brain are unique from other capillaries as they have more tight junctions and limit endocytosis and exocytosis. 3. The nerve roots that fuse to form the spinal nerves serving the upper and lower limbs are attached to the spinal cord at the cervical and lumbar enlargements of the spinal cord.