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22 Cards in this Set
- Front
- Back
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Three primary functions of the nervous system: |
1. Sensory function 2. Integrative function 3. Motor function |
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The ability to analyze and interpret sensory info to produce an appropriate response |
Integrative function |
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Functional unit of the nervous system |
Neuron |
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Which neurons transmit nerve impulses FROM effector sites via receptors TO the spine and brain? |
Sensory neurons |
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What is the role of Motor neurons? |
Motor neurons transmit impulses from the Brain and spine to effector sites (such as organs and muscles) |
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How many pairs of cranial nerves in the PNS? |
6 pairs of cranial nerves (12 nerves) |
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The Peripheral Nervous System has __ pairs of spinal nerves |
31 pairs of spinal nerves |
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The Peripheral Nervous System is divided into ___ systems (name them) |
2 systems-- Somatic and autonomic |
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The Autonomic nervous system is divided into two systems called .. |
Sympathetic and parasympathetic |
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Name the 3 kinds of mechanoreceptors |
1. Muscle spindles 2. Golgi tendon organ 3. Joint receptors |
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Which sensory receptors are located where skeletal muscle fibers insert into the tendons of skeletal muscles? |
Golgi tendon organ |
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Which sensory receptors can signal extreme joint positions and initiate reflexive inhibitory response in surrounding muscles? |
Joint receptors |
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Name the four kinds of sensory receptors: |
1.Mechanoreceptors 2. Nociceptors 3. Chemoreceptors 4. Photoreceptors |
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The golgi tendon organ is a mechanoreceptor that is sensitive to change in _____ & _____ |
Muscular tension & rate of tension change |
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Which mechanireptors help regulate the contraction of muscles? |
Muscle spindles |
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Fill in the 2 blanks: |
Motor Nerves and Sensory Nerves |
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Which mechanoreceptors regulate muscle contraction via the stretch reflex mechanism? |
Muscle spindles |
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The appendicular skeleton is made up of |
Upper and lower extremities and then shoulder and pelvic girdles |
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Approximately how many bones in the appendicular skeleton? |
126 |
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How many of the body's bones are used in voluntary movement? |
A. 206 B. 177 C. 126 D. 176 |
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A type of bone cell that removes bone tissue |
Osteoclasts |
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Osteoblasts are ____ cells responsible for ___ |
Bone cells responsible for bone formation |
