THE SENSES 2 Flashcards

1
Q

Somatosensation (NEXT LEVEL)

A

information gathered by The skin, muscles, and joints
receptors that can sense touch, pressure,
temperature, pain, or the position of the body

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2
Q

HOW MANY STIMULUS TYPES CAN 1 RECEPTOR CELL RESP0ND TO?

A

1

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3
Q

Mechanoreceptors

A

nerve endings that are encapsulated by connective tissue that
sense touch and pressure.

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4
Q

HOW MANY TYPES OF encapsulated nerve endings ARE THERE

A

3 WITH 3 DIFFERENT MORPHOLOGIES

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5
Q

WHAT DOES THE Stretching of the connective tissue fibers of the encapsulated endings DO?

A

activates ion

channels which can produce action potentials that signal to the central nervous system

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6
Q

How are Posture and movement of body parts sensed?

A

by muscle stretch
mechanoreceptors, as well as mechanoreceptors present in skin, joints, tendons, and
ligaments. They sense the amount of muscle stretch as well as the rate of muscle stretch.

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7
Q

proprioception

A

the perception of where the body is in space, by Vision and balance

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8
Q

thermoreceptors

A

sense temperature

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9
Q

how is temperature sensed?

A

Free nerve endings, which are processes of neurons, sense temperature using ion
channels that are activated only at certain temperatures

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10
Q

nociceptors

A

sense pain, extreme mechanical deformation, high temperatures, as well as chemicals released by damaged cells or immune cells.

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