Calcium turns on cross bridges by physically repositioning the troponin-tropomyosin complex to uncover the actin cross-bridge binding sites in
a. skeletal muscle
b. cardiac muscle
c. smooth muscle
d. striated muscle
e. all of the above except c
E
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With which muscle is the linea alba most closely associated?
A. Frontalis B. Rectus abdominis C. Rectus femoris D. Biceps femoris
Many upper motor neurons synapse with lower motor neurons in the ________.
A. posterior funiculus B. posterior horn C. posterior root ganglion D. anterior horn E. anterior funiculus
By signaling the small intestine, the _____ is an endocrine gland, and _____ is a hormone
a. large intestine; vitamin D b. large intestine; vitamin E c. skin; vitamin D d. skin; vitamin E e. thyroid gland; TSH
A(n) ________ reflex has at least one interneuron placed between the sensory and motor neurons
A) sensory B) motor C) polysynaptic D) monosynaptic E) integrative