1. An axon with a diameter carries electrical impulses the fastest.

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BIOS 252 Week 5 The Senses

• An axon with a diameter carries electrical impulses the fastest.

–Answer myelinated, large

• Free nerve endings

–Answer respond to pain, temperature, tickle, itch

• Encapsulated nerve endings

–Answer respond to touch, pressure, vibration

• The finger-like projections extending from the neuron's cell body that are most frequently the

site of stimulation and formation of graded potentials are called .–Answer dendrites

• When a stimulus activates its specific sensory receptor.

–Answer sense

• The process of your brain interpreting all the stimuli at a given time

–Answer perceive

• Receptors can either fast or slowly. If they do so quickly, they are called

receptors, if they do so slowly, they are called receptors.–Answer adapt, tonic, phasic

• General senses 1 / 2

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–Answer

• found all over the body
• include free nerve ending and encapsulated dendrites
• Special senses

–Answer

• all located in the head
• most require special cells
• sometimes require complex support structures
• Exteroceptors

–Answer receptors sense information coming from the outside

• Interoceptor

–Answer sense information originating from the inside

• Proprioceptor

–Answer receptors sense information about body position.

• Chemoceptors

–Answer sense changed in chemical composition

• Noicioceptors

–Answer sense pain

• Mechanoreceptors

–Answer sense stretching, pressure or vibration

• Photoreceptors
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