Anatomy-Final 48 cards

Tagged as: anatomy, biology, microbiology, medical, medicine, pathology, psychology, astronomy, nursing

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1

Neural tissue is characterized by two special abilities?

The ability to respond to stimuli (excitability) and the ability to carry impulses (conductivity)

2

What is a receptor used for?

to detect a specific stimuli

3

What is the function for the sensory and motor neurons?

Sensory carries impulses to CNS and are unipolar; Motor carries a response away from the CNS and are multipolar

4

How are responses of the nervous system carried out?

By effectors which are either muscles or glands of the body


6

Dendrites

Short, highly branched extensions of the cell body which are the first structures to receive impulses from receptors

7

Axon

Long extensions that carry impulses away from the cell body of a neuron and are protected by a lipid covering called the myelin sheath




11

Astrocytes

nourishes neuron

12

Oligodendrocytes

produces myelin; covers CNS

13

Microglial cells

removes debris and dead tissue

14

Ependymal cells

line spaces in CNS


16

What is the CNS made up of?

brain and spinal cord


18

Sarcoplasmic Reticulum

stores calcium for release during muscle contraction




22

Synergist

muscles acting together to perform the same action

23

Antagonist

a muscle that opposed the action of another muscle

24

Orbicularis Oris .

closes lips

25

Orbicularis Oculi .

closes eyelids

26

Zygomatic .

smile

27

Sternocleidomastoid .

rotates head from side to side

28

Latissimus Dorsi .

extends upper arm

29

Deltoid .

abducts upper arm

30

Biceps Brachii .

flexes forearm

31

Triceps Brachii .

extends forearm

32

Glueus Maximus .

extends upper leg

33

Adductor Group .

adducts leg

34

Quadriceps Group .

extends knee

35

Hamstrings Group .

flexes knee

36

State the four muscles that are used to compress the abdominal wall

External oblique, internal oblique, transverse abdomis, rectus abdomis


38

Meninges

three layers of connective tissue that protect the brain and spinal cord; dura mater- toughest, arachnoid mater- middle, pia mater- last

39

Choroid Plexuses

group of capillaries in which CSF is released from the plasma of the blood in the brain; circulates within the sub-arachnoid space and the 4 ventricles of the brain

40

Cerebrum

largest region of the brain

41

Cerebral Cortex

outer layer of the brain and is referred to as te gray matter; has many folds called convolutions (ridges-gyn; grooves-sulci)

42

What are the two hemispheres of the cerebrum seperated by?

longitudinal fissue and is joined internally by the region known as the corpus callosum

43

Frontal Lobe

associated with thinking and contains the motor cortex (precentral gyrus) which control voluntary muscle actions; is seperated from the parietal by the central sulcus

44

Post Central Gyrus

in the parietal lobe and is involved with all sensory recognition


46

What are the white matter fibers in the cerebellum divided into?

Commissural fibers connect the right and left sides; association fibers connect lobes of the same hemispheres; projection fibers connect cerebellum with all other areas of the brain and spinal cord

47

What is the dienephalon of the cerebrum divided into?

thalamus which is the relay center for sensory information cortex and the hypothalamus which maintains homeostasis

48

Pituitary Gland

master gland of the body because it releases hormones to all parts of the body