Which of the following affects blood flow through the body?
A) blood viscosity
B) vessel diameter
C) turbulence
D) vascular resistance
E) All of the answers are correct.
Answer: E) All of the answers are correct.
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The period during which an excitable membrane cannot respond to further stimulation is the ________ period
A) relative refractory B) absolute refractory C) resting D) lag E) stationary
Select the correct statement about lymph transport
A) Under normal conditions, lymph vessels are very high-pressure conduits. B) Lymph transport is only necessary when illness causes tissue swelling. C) Lymph transport is faster than that occurring in veins. D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
What type of tissue lines the trachea?
A. Simple squamous epithelium B. Cuboidal epithelium C. Stratified squamous keratinized epithelium D. Pseudostratified ciliated columnar epithelium E. Stratified squamous nonkeratinized epithelium
Regulatory proteins turn these on and off in accordance with changing needs for the proteins they encode.
a) enzymes b) proteins c) ribosomes d) genes