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Flashcards in Exam 2 Deck (43):
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Brain stem is made up of...

Midbrain
Pons
Medulla Oblangata

1

Brain stem function

Breathing
Circulation
Digestion

Unconscious

Sensory info in and Motor info out

2

Cerebellum location

Lower bottom section

3

Cerebellum function

Body control
Motor memory

4

Thalamus function

Routes information

5

Hypothalamus function

Maintain homeostasis

Body temp
Osmolarity

6

Posterior Pituitary function

Hormones

7

Cerebrum function

Integration

Making sense of signals

8

Corpus Collosum function

Connects right and left hemisphere

9

Basal Ganglia function

Motor Control

Found only by looking at diseases

10

Frontal Lobe

Emotional
Personally
Speech

11

Parietal Lobe

Sensing and making sense of senses

12

Occipital Lobe

Vision

13

Temporal Lobe

Hearing
Smell

14

Where is the Somatosensory Cortex

Parietal Lobe

15

Where is the Motor Cortex

Frontal Lobe

16

Action Potential

Electrical current traveling through the cell

17

Dendrites function

Capture chemical signal

18

Dendrite Location

End branches on neuron

19

Soma

Body of Neuron

20

Hillock location

Base of Soma

21

Axon Location

Tube from Hillock to Terminal Branches

22

Terminal Branches Location

Branches at the end of axon

23

Polarity of Neuron

Negative on inside

24

Resting Membrane Potential

Resting distribution of ions across plasma membrane

25

Na concentration

More outside cell

Fast channels to open

26

K concentration

More inside cell

Slow channels to open

27

Facilitated Diffusion

Allow ions to move from high to low pressure gradient

28

Leakage channel

Goes through entire neuron

Always open

29

Ligand Gated Channel

Open with chemical stimulation

Ach needed

30

Graded Potential

Local Depolarization of plasma membrane

31

Does depolarization decay or increase with distance from the stimulus

Decay

32

-55 mV

Threshold

33

-70mV

Initial membrane potential

34

Voltage gated channels

Open when threshold is reached

35

Depolarization

Na moving inside cell

Move positive polarization

+30mV

36

Repolarization

K moves out of cell

Returning cell to original polarization

37

HyperPolarization

More negative polarization that resting membrane potential

38

Gilia- oligdendrocyte

CNS
Myelin sheath

39

Gilia - astrocyces

CNS
Regulate extracellular fluid

40

Gilia - microglia

CNS
Immune function
Macrophage

41

Gilia - Ependymal

CNS
Regulate cerebral spinal fluid

42

Gilia - Schwann

PNS
Myelinate axons