anatomy unit 2 nervous system the brain notes

ANATOMY

Unit 2 Notes:

The Brain

(1) Frontal Lobe• Speech Production (from Broca’s Area)

• Concentration, Problem Solving, Planning

• Voluntary Muscle Contractions

(2) Parietal Lobe• Interpretation of speech, sounds,

surroundings

• Pick up on skin sensations

(3) Temporal Lobe• Interpret sensations

• Visual & Auditory Memory• Basic Hearing function• Ability to learn + connect concepts

• Includes:– Thalamus– Hypothalamus– Pituitary Gland– Corpus Callosum– Limbic System

(4) Stuff In Your Temporal• Thalamus = Sensory reception

• Hypothalamus = Control Body Temperature, Maintain fluid + ion levels, Regulates Metabolism, Sleep

• Limbic System = Emotions

• Pituitary = Regulate hormone secretion

• Corpus Callosum = Connective tissue between left and right hemispheres

(5) Occipital Lobe• Vision

• Combines images to make complete picture

(6) Cerebellum• Coordinates muscle movement

• Maintains normal muscle tone

• DOES NOT MAKE MUSCLES MOVE!–Makes them move smoothly!

(7) Brain Stem• Passes info between spinal cord + brain

• Includes:–Midbrain– Pons–Medulla Oblongata

(8) Stuff in Brain Stem• Midbrain:– Fight or Flight responses (based of past)– Helps with vision + auditory senses

• Pons:– Respiratory Reflexes– General Breathing Rate

• Medulla Oblongata:– Maintains Homeostasis– Heartbeat, Blood pressure, Digestive reflexes– Also assists pons in respiration