Nervous System Ms. Doshi.

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Nervous System Ms. Doshi

Prayer Attendance Homework

Sensory Division Sensory receptors convert stimuli into action potentials. There are 3 types of sensory receptors in the nervous system: interoceptors, proprioceptors and exteroceptors Have threshold values for impulse intensity. When sensory receptors are depolarized, they depolarize sensory neurons that go to the CNS.

Interoceptors Interoceptors Receive internal signals Respond to blood pressure, blood CO2 concentration, and body temperature.

Proprioceptors Proprioceptors Transmit information about the spatial orientation of the body. (본체의공간 방향 에 대한 정보 를 전송한다.) The semicircular canals of the ear are proprioceptors.

Exteroceptors Exteroceptors React to external environment stimuli, such as pressure, light, or heat. Each receptor is specific for one type of stimulus. Example: the eye responds to light, but not to heat or sound. There are exteroceptors in the skin for each type of stimulus: heat, cold, pain, light, touch, and strong pressure.

Sensory Receptors Examples: Light receptors Pain receptors Rods and cones Pain receptors Naked nerve endings Chemoreceptors Smell receptors and taste buds Visceral receptors Body temperature detectors

Questions 12