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Multiple Choice
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1

Which one of the following pairs of terms is logical?
A)capillary - digestion
B)villi - absorption
C)alveolus - vein
D)nephron - digestion
2

The sense of taste involves the detection of
A)molecules.
B)ions.
C)pH.
D)All of the above are correct.
3

Smooth muscle differs from skeletal muscle in that smooth muscle
A)can only contract with nervous stimulation.
B)can contract more rapidly than skeletal muscle.
C)contracts more smoothly than skeletal muscle.
D)None of the above is correct.
4

Growth is regulated by
A)nerves.
B)the digestive system.
C)hormones.
D)sense organs.
5

When you exercise, your heart rate and breathing rate increase. This is an example of
A)homeostasis.
B)stimulus - response.
C)hormones increasing metabolism.
D)voluntary control.
6

The kidney functions to
A)destroy waste products of metabolism.
B)filter about 5-6 liters of blood each day.
C)produce hormones that stimulate growth.
D)regulate water loss from the body.
7

Digestion of food in the digestive system is important because
A)the food molecules are not the correct kinds of molecules.
B)large molecules cannot pass through the walls of capillaries.
C)energy can only be gotten from food if it is digested.
D)None of the above are true.
8

Which of the following is the correct sequence for blood flow?
A)heart - capillaries - veins - arteries
B)heart - veins - capillaries - arteries
C)heart - arteries - capillaries - veins
D)capillaries - heart - arteries - veins
9

All of the following are part of the immune system except
A)red blood cells.
B)antibodies.
C)macrophages.
D)white blood cells.
10

_____ cells are the most sensitive to losses in blood flow from the heart.
A)Muscle
B)Skin
C)Brain
D)Digestive system
11

Which of the following is the correct sequence for blood flow?
A)right atrium → left atrium → lungs → right ventricle → left ventricle
B)right atrium → right ventricle → lungs → left atrium → left ventricle
C)left atrium → left ventricle → lungs → right atrium → right ventricle
D)left atrium → right atrium → lungs → left ventricle → right ventricle
12

Which of the following is the correct sequence for the movement of oxygen from the air to muscles?
A)alveoli → capillaries → blood → movement of blood → capillaries → muscles
B)trachea → capillaries → blood → nephrons → movement of blood → capillaries → muscles
C)alveoli → capillaries → heart → muscles → capillaries
D)All of the above are true.
13

Which of the following is the correct sequence for the digestive system?
A)stomach → small intestine → large intestine → pharynx
B)stomach → pharynx → large intestine → small intestine
C)pharynx → stomach → small intestine → large intestine
D)small intestine → stomach → pharynx → large intestine
14

Small projections from the walls of the small intestine that aid in nutrient uptake are called
A)alveoli.
B)duodenum.
C)lymph.
D)villi.
15

The functional unit of a kidney is called a
A)villi.
B)nephron.
C)pancreas.
D)bile.
16

The function of the small intestine is
A)to absorb nutrients.
B)secrete enzymes.
C)move materials along the length of the intestine.
D)All of the above are true.
17

Which blood vessels regulate the amount of blood going to an area of the body?
A)capillaries
B)arteries
C)arterioles
D)veins
18

Which one of the following has the lowest blood pressure?
A)arteries
B)veins
C)capillaries
D)None is correct. They all have the same blood pressure.
19

The primary function of red blood cells is to
A)carry food.
B)fight disease.
C)carry oxygen.
D)All of the above are correct.
20

The basic unit of the nervous system is a cell called a
A)soma.
B)dendrite.
C)neuron.
D)axon.
21

A synapse is
A)a region where an axon of one neuron interacts with the dendrite of another.
B)only able to allow the impulse to flow in one direction.
C)involves the transfer of molecules from axon to dendrite.
D)All of the above are correct.
22

What two ions regulate the firing of neurons?
A)sodium and potassium
B)calcium and magnesium
C)potassium and calcium
D)sodium and calcium
23

Which of the following hormones typically produces a rapid physiological response?
A)testosterone
B)estrogen
C)epinephrine
D)growth-stimulating hormone
24

All of the following pairs of concepts are logical except which pair?
A)cones: color vision
B)cones: fovea centralis
C)rods: fovea centralis
D)rods: black and white vision
25

Which of the following muscles rapidly responds to messages from the brain?
A)Chest muscles used in breathing.
B)Muscles in the intestine that move food through the digestive tract.
C)Heart muscle used to pump blood.
D)None of the above is true.





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