Test 2 Spring Flashcards Preview

Biology 1620 > Test 2 Spring > Flashcards

Flashcards in Test 2 Spring Deck (30):
1

HOW MANY CATEGORIES ARE THERE OF NERVOUS SYSTEM CELLS?

2 BROAD CATEGORIES

2

NAME THE 2 CATEGORIES OF NERVOUS SYSTEM CALLS.

NEURONS AND GLIAL CELLS

3

HOW MANY TYPES OF NEURONS ARE THERE?

3 TYPES
-SENSORY NEURONS
-INTER-NEURONS NEURONS
-MOTOR NEURONS

4

WHAT IS THE FUNCTION OF SENSORY NEURONS?

TAKE IN THE INFORMATION AROUND THEM FROM OTHER CELLS (SENSE)

5

WHAT IS THE FUNCTION OF INTERNEURONS? WHAT DO THEY DO?

INTERNEURONS INTEGRATE INFORMATION (INTERPRETS AND SUMS UP INFORMATION)

6

WHAT DO MOTOR NEURONS DO?

MOTOR NEURONS ENACT FUNCTION AND RESPONSE

7

WHAT IS AN EXAMPLE THAT USES ALL 3 NEURONS?

KNEE JERK REACTION

8

WHAT TYPE OF CELL IS A EPENDYMAL CELL AND ITS FUNCTION?

GLIAL CELL
STRUCTURAL SUPPORT

9

WHAT TYPE OF CELL IS A SCHWANN CELL AND ITS FUNCTION?

INSULATION OF NEURONS

10

WHAT TYPE OF CELL IS A OLIGODENDROCYTES AND ITS FUNCTION?

INSULATION OF NEURONS

11

GLIAL CELLS ALSO FUNCTION AS

MAINTAINING CONCENTRATION OF IONS AND CHEMICALS AROUND THE NEURONS
NEURONAL MAINTENANCE

12

WHAT DO ASTROCYTES DO? WHAT TYPE OF CELL ARE THEY?

THEY FORM BLOOD-BRAIN BARRIER AND ARE GLIAL CELLS

13

WHAT TYPE OF CELL IS A RADIAL AND WHAT IS THE FUNCTION?

THEY PROVIDE A PATH FOR DEVELPOPING NEURONS
GLIAL CELL

14

WHICH CELLS OUT OF THE TWO THAT PROVIDE INSULATION OF NEURONS ARE IN THE CENTRAL NERVOUS SYSTEM?

OLIGODENDROCYTES

15

WHICH CELLS OUT OF THE TWO THAT PROVIDE INSULATION OF NEURONS ARE IN THE PERIPHERAL NERVOUS SYSTEM?

SCHWANN CELLS

16

NEURON ANATOMY:
-FINGERS

DENDRITES
-RECEIVING SIGNALS

17

NEURON ANATOMY:
-PALM OF HAND

CELL BODY
-INFORMATION MEETS AND SUMS UP INOFRMATION

18

NEURON ANATOMY:
-WRIST

AXON HILLOCK
-WHERE WE GET TO THRESHOLD AND GET ACTION POTIENTAL

19

NEURON ANATOMY:
-ARM

AXON

20

NEURON ANATOMY:
-ARM W/ SLEEVE

MYELIN SHEATH

21

NEURON ANATOMY:
-ARM W/ GAPS

NODE OF RANVIEN
-ALLOW FOR SALUTATORY CONDUCTION

22

DO ALL NEURONS HAVE NODE OF RANVIEN?

NO

23

NEURON ANATOMY:
-FINGERS ON OTHER HAND

AXON TERMINALS
SPIT OUT NEURON TRANSMITTER

24

DO AXON CELLS RECEIVE OR SEND INFORMATION AWAY?

AWAY FROM CELL BODY

25

DO DENDRITES CELLS RECEIVE OR SEND INFORMATION AWAY?

RECIEVE

26

TRUE OR FALSE
THE NUMBER OF COMPLEXITY OF DENDRITES IS CORRELATED WITH THE AMOUNT OF INPUT THE NEURON RECEIVES.

TRUE

27

WHAT IS MEMBRANE POTENTIAL?

RELATIVE CHARGE BETWEEN INSIDE AND OUTSIDE

28

WHAT IS RESTING POTENTIAL?

-70mV

29

WHAT IS DEPOLARIZATION?

WHEN CELL BECOME MORE ACTIVE; MORE POSITIVE CLOSER TO ZERO

30

WHAT IS HYPER POLARIZATION?

WHEN CELL BECOMES MORE POLAR, MORE NEGATIVE
LESS ACTIVE
FARTHER FROM 0