Which answer choice below is considered the afferent sensory neuron in the reflex arc for defecation?
A. Stretch receptors in the rectal wall
B. Motor neurons in the rectal wall
C. The rectal wall
D. Spinal cord
Answer: A
Anatomy & Physiology
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An abnormal cell would be identified by the immune system because it showed
A) Class I MHC proteins. B) Class II MHC proteins. C) Class I MHC proteins with an antigen bound. D) Class II MHC proteins with an antigen bound. E) a CD3 receptor complex in the membrane.
Anatomy & Physiology
How alike are our genomes?
A) About 25% B) Nearly 100% C) About 75% D) About 10%
Anatomy & Physiology
Which structure is a conical mass within the renal medulla that ends at the papilla?
A) renal sinus B) renal cortex C) renal pyramid D) renal column E) minor calyx
Anatomy & Physiology
Rugae are found in the:
a. stomach b. urinary bladder c. vagina d. all of the above
Anatomy & Physiology