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| 1 | |
During the development of connective tissue, which type of cells produce and secrete the extracellular matrix? |
| | A) | stem cells |
| | B) | chondrocytes |
| | C) | osteocytes |
| | D) | fibroblasts |
| | E) | amoebocytes |
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| 2 | |
How does the body control the overall strength of skeletal muscle contractions? |
| | A) | by varying the rate of nerve impulses |
| | B) | by stimulating different numbers of muscle fibers |
| | C) | by rapid firing of motor neurons |
| | D) | by varying the amount of neurotransmitters released |
| | E) | by antagonistic interactions between muscle cells |
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| 3 | |
Neuroglia cells: |
| | A) | transmit nerve impulses. |
| | B) | are only found in the central nervous system. |
| | C) | are only found in the peripheral nervous system. |
| | D) | are associated with axons and form an insulated covering. |
| | E) | form ganglia. |
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| 4 | |
Which organ systems are involved in the functions of regulation and maintenance? |
| | A) | endocrine, circulatory, urinary, respiratory |
| | B) | immune, endocrine, sensory, circulatory |
| | C) | digestive, circulatory, urinary, respiratory |
| | D) | circulatory, urinary, respiratory, reproductive |
| | E) | circulatory, endocrine, respiratory |
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| 5 | |
What are antagonistic effectors? |
| | A) | errors in nerve impulses |
| | B) | different effectors that have opposing actions |
| | C) | different effectors that have reinforcing actions |
| | D) | effectors that work in a sequence |
| | E) | only occur in the musculoskeletal system |
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| 6 | |
Groups of cells that are similar in structure and function are organized into: |
| | A) | organs. |
| | B) | organ systems. |
| | C) | germ layers. |
| | D) | tissues. |
| | E) | layers. |
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| 7 | |
Because epithelial membranes cover all surfaces of the body, this means that: |
| | A) | they form a barrier to the entry and exit of substances to and from the body. |
| | B) | they must be shed regularly. |
| | C) | they are impermeable to most substances. |
| | D) | the cells are tightly bound together. |
| | E) | they form a barrier to the entry and exit of substances to and from the body and the cells are tightly bound together. |
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| 8 | |
All types of connective tissue share what common structural feature(s)? |
| | A) | They are comprised of fibers. |
| | B) | Their cells are widely spaced apart and they contain much extracellular material. |
| | C) | They occur in layers. |
| | D) | They originate as embryonic endoderm. |
| | E) | all of the above |
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| 9 | |
Of the three types of muscle tissue, which are under voluntary control? |
| | A) | skeletal and smooth |
| | B) | skeletal, smooth and cardiac |
| | C) | skeletal only |
| | D) | smooth only |
| | E) | none |
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| 10 | |
Neurons consist of the following parts: |
| | A) | neuroglea |
| | B) | dendrites, axon |
| | C) | dendrites, cell body |
| | D) | cell body, dendrites, axon |
| | E) | neuroglea, dendrites, axons |
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| 11 | |
The body's organ systems work independently of one another. |
| | A) | True |
| | B) | False |
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| 12 | |
Homeostasis: |
| | A) | only involves positive feedback mechanisms. |
| | B) | only involves negative feedback mechanisms. |
| | C) | maintains internal conditions within narrow limits. |
| | D) | maintains internal conditions at exact values. |
| | E) | allows for large variations in values. |
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| 13 | |
Cells of this tissue are tightly bound together, forming a selective barrier. |
| | A) | Epithelial |
| | B) | Connective |
| | C) | Muscle |
| | D) | Nervous |
| | E) | None of these |
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| 14 | |
This tissue comes in three varieties—smooth, striated, and cardiac. |
| | A) | Epithelial |
| | B) | Connective |
| | C) | Muscle |
| | D) | Nervous |
| | E) | None of these |
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| 15 | |
Mammalian thermoregulation is controlled by the |
| | A) | Hypothalamus. |
| | B) | Urinary system. |
| | C) | Circulatory system. |
| | D) | Integumentary system. |
| | E) | Digestive tract. |
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