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1 | |
The difference between the endocrine glands and the exocrine glands is that |
| | A) | The exocrine glands empty their products into ducts. |
| | B) | The endocrine glands are responsible for communicating with the nervous system. |
| | C) | The endocrine glands produce the hormones. |
| | D) | The exocrine glands are under the direct control of the brain. |
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2 | |
A major difference between axons and dendrites is that axons |
| | A) | Are found in the central nervous system, while dendrites are found in the peripheral nervous system. |
| | B) | Carry messages away from the nerve cell body, while dendrites carry messages toward the nerve cell body. |
| | C) | Are parts of motor neurons, while dendrites are found exclusively on sensory neurons. |
| | D) | Function in initiating the action, while dendrites function in maintaining the action. |
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3 | |
Which of the following statements is/are true about nerve impulses? |
| | A) | A nerve impulse is an electrical message traversing a nerve cell. |
| | B) | Nerve impulses involve the depolarization and repolarization of a cell membrane. |
| | C) | Neurotransmitters carry the impulse message from one cell to another. |
| | D) | All of the above. |
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4 | |
At the base of the brain where the spinal cord enters the skull is a portion of the brain known as the |
| | A) | Medulla oblongata. |
| | B) | Cerebellum. |
| | C) | Pons. |
| | D) | Cerebrum. |
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5 | |
Cells that receive endocrine messages typically respond in which of the following ways? |
| | A) | These cells release products that have been previously manufactured. |
| | B) | These cells may begin to synthesize new molecules. |
| | C) | These cells may divide and grow. |
| | D) | All of the above. |
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6 | |
Right brain activities include |
| | A) | Language. |
| | B) | Analytical skills. |
| | C) | Spatial relations. |
| | D) | All of the above. |
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7 | |
The increased amount of one hormone interfering with the production of a different hormone - as can be found in the thyroid cascade - is an example of |
| | A) | Negative-feedback control. |
| | B) | Positive-feedback control. |
| | C) | Regulatory interference. |
| | D) | Synaptic regulation. |
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8 | |
Which of the following statement(s) is/are true? |
| | A) | The sense organs detect changes in the environment. |
| | B) | The brain is responsible for perception of the environmental stimulus. |
| | C) | All cells have chemical receptors that bind to stimuli molecules. |
| | D) | All of the above. |
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9 | |
The olfactory epithelium is responsible for detecting chemical changes in the |
| | A) | Mouth. |
| | B) | Nasal passages. |
| | C) | Skin. |
| | D) | All of the above. |
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10 | |
In the eye, the rods are responsible for |
| | A) | Sensitivity to light. |
| | B) | Sensitivity to color. |
| | C) | Maintaining the shape of the eyeball. |
| | D) | Rhodopsin production. |
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11 | |
The cochlea is primarily responsible for |
| | A) | Transmitting sound waves to the tympanum. |
| | B) | Housing the basilar membrane and thus transmitting sound to the brain. |
| | C) | Maintaining balance and posture. |
| | D) | Protecting the auditory tube and the bones of the middle ear. |
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12 | |
Touch receptors respond to |
| | A) | Pressure. |
| | B) | Temperature. |
| | C) | Pain. |
| | D) | All of the above. |
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13 | |
Which of the following statements is/are true about muscle contraction? |
| | A) | Only skeletal muscle contracts. |
| | B) | The primary ion involved in the actin / myosin interaction is calcium. |
| | C) | Smooth muscles relax in response to being stretched. |
| | D) | Skeletal muscles can remain contracted for extended periods of time; smooth muscles contract and relax quickly. |
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14 | |
Self-stimulation, in ability to stay contracted, and a period of relaxation between contractions are characteristics of |
| | A) | Skeletal muscle. |
| | B) | Smooth muscle. |
| | C) | Cardiac muscle. |
| | D) | All of the above. |
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15 | |
The nervous system and the endocrine system are related, as demonstrated by |
| | A) | The length of day influencing the development of reproductive organs in some animals. |
| | B) | The brain releasing endorphins to deaden the pain felt by athletes. |
| | C) | Interactions with digestive enzymes occurring in the digestive tract. |
| | D) | All of the above. |
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16 | |
An organism's reaction to a change in the environment is a(n) |
| | A) | stimulus. |
| | B) | impulse. |
| | C) | response. |
| | D) | perception. |
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17 | |
At night which one of the following is used? |
| | A) | rods |
| | B) | green cones |
| | C) | red cones |
| | D) | cochlea |
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18 | |
When muscles contract |
| | A) | glycogen is synthesized. |
| | B) | calcium is lost. |
| | C) | ATP is produced. |
| | D) | actin slides by myosin. |
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19 | |
Acetylcholine is destroyed by |
| | A) | cholinesterase. |
| | B) | endocrine glands. |
| | C) | exocrine glands. |
| | D) | axons. |
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20 | |
The source of growth stimulating hormone responsible for the disease Giantism is |
| | A) | adrenal gland. |
| | B) | pituitary gland. |
| | C) | testes. |
| | D) | thyroid. |
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21 | |
A light stimulus is received by the nervous system which results in growth. This is the result of |
| | A) | release of hormones from the thyroid. |
| | B) | activating muscles. |
| | C) | stimulating the endocrine system. |
| | D) | increasing nervous activity. |
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22 | |
When a nerve cell is stimulated |
| | A) | acetylcholine is destroyed. |
| | B) | potassium ions enter the neuron. |
| | C) | sodium ions enter the neuron. |
| | D) | calcium attaches to the dendrites. |
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23 | |
Which one of the following is necessary for muscle contraction? |
| | A) | calcium ions |
| | B) | glucose |
| | C) | testosterone |
| | D) | fat |
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24 | |
When the temperature of a home falls below a set-point, the furnace produces heat. Once the home has reached the desired temperature, the furnace shuts off. As the home cools and again falls below the set-point the furnace will again produce heat. This cycle is similar to ________ that occurs in the human body. |
| | A) | depolarization |
| | B) | negative feedback control |
| | C) | muscle contractions |
| | D) | a synapse |
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25 | |
Which one of the following is NOT a type of muscle? |
| | A) | skeletal muscle |
| | B) | cardiac muscle |
| | C) | neuron muscle |
| | D) | smooth muscle |
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26 | |
The central nervous system consists of the |
| | A) | brain only. |
| | B) | brain and spinal cord. |
| | C) | brain, spinal cord, and nerves. |
| | D) | motor neurons and sensory neurons. |
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27 | |
Olfactory senses detect |
| | A) | light. |
| | B) | sound. |
| | C) | chemicals. |
| | D) | pain. |
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28 | |
The ear bones are the |
| | A) | malleus, incus, and stapes. |
| | B) | tympanum and cochlea. |
| | C) | rods and cones. |
| | D) | fovea centralis and olfactory epithelium. |
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29 | |
The chemical messengers secreted by endocrine glands are called |
| | A) | enzymes. |
| | B) | hormones. |
| | C) | neurotransmitters. |
| | D) | impulses. |
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30 | |
Which of the following is NOT part of a nerve cell? |
| | A) | dendrites |
| | B) | soma |
| | C) | axon |
| | D) | myosin |
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