Which of the following is NOT true about the knee jerk reflex?
A) It is a spinal reflex.
B) It is a somatic reflex.
C) It helps to maintain an upright posture.
D) It involves conduction of nerve impulses from sensory neuron to interneuron to motor neuron.
Answer: D) It involves conduction of nerve impulses from sensory neuron to interneuron to motor neuron.
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Plasma composes about ________ percent of whole blood and water composes ________ percent of the plasma volume
A) 55; 92 B) 92; 7 C) 92; 55 D) 45; 55 E) 50; 50
If a heavy load is at one end of a lever, the distance between the fulcrum and that load is called the
A. effort arm. B. resistance arm. C. lever length.
Which of the choices below is not a function of the vagina?
A) serves as the birth canal B) receives semen from the penis during sexual intercourse C) serves as a passageway for menstrual flow D) serves as a passageway for the primary oocyte
The term subdural hematoma refers to blood accumulation
A) in the endothelial linings of the brain capillaries. B) in the subarachnoid space. C) under the pia. D) outside of the dura. E) between the layers of the dura