Ch 48 & 49 Review

Ch 48 & 49 Review

Nervous System Diversity

Overview of the Nervous System 

Reflex Arc

Neuron Structure

The Synapsehttp://www.sumanasinc.com/webcontent/anisamples/neurobiology/synaptictransmission.html

http://www.sumanasinc.com/webcontent/anisamples/neurobiology/reflexarcs.html

How does an action potential senda nerve impulse?

Resting Potential in Neurons:

http://www.sumanasinc.com/webcontent/anisamples/neurobiology/signaling.html

Nerve Impulse; Depolarization:

http://www.sumanasinc.com/webcontent/anisamples/neurobiology/signaling.html

Peripheral Nervous System

Vertebrate PNS: Autonomic NS

Sympathetic:-Adrenal secretion-”Fight or flight” response

Parasympathetic:-Returns body to normal

Embryonic Development of the Brain

The Human Brain

1. The Left Hemisphere:- Specializes in language, math, logic operations, and the processing of serial sequences of

information, and visual and auditory details.- Specializes in detailed activities required for motor control.

2. The Right Hemisphere:- Specializes in pattern and face recognition, spatial relationships, nonverbal ideation, emotional processing, the parallel processing of information, and music.

Match the brain part and function• Medulla oblongata• Pons• Midbrain• Reticular formation• Cerebellum• Epithalamus• Thalamus• Hypothalamus• Cerebrum• Limbic system• Hippocampus

• Receives/integrates information• Emotions• Homeostatic regulation; “thermostat”• Produces CSF• Part of limbic system; long-term

memory• Breathing/relays info to higher brain

areas• Sensory info is sorted here• Regulate sleep/arousal• Cognition/integration• Breathing, heart, swallowing,

digestion• Hand-eye coordination;

movement/balance

Ear Equilibrium

Taste Transduction

Human Smell

Light Sensor

Compound Eye