Exam 2: Cerebrum and Receptors Flashcards Preview

Anatomy A-215 > Exam 2: Cerebrum and Receptors > Flashcards

Flashcards in Exam 2: Cerebrum and Receptors Deck (22):
1

Telencephalon Functions

-the cerebrum
-higher brain functions
-memory, personality, decision making

2

Cerebrum consists of...?

-outer gray matter (cerebral cortex)
-inner white matter
-each hemisphere controls opposite sides of body

3

Structure of Cerebrum

-2 cerebral hemispheres (R and L)
-Longitudinal fissure separates two hemispheres
-corpus callosum-axons that connect R and L hemispheres
-cortex is highly convoluted

4

Gyrus

-raised areas/elevation

5

Sulcus

-depression or groove between gyri

6

Frontal Lobe

-ends at central sulcus-separates frontal and parietal lobes
-contains motor speech area (Broca's area) and primary motor cortex

7

Motor Speech Area (Broca's area)

-left frontal
-controls motor functions involved with speech
-if damaged you are physically unable to speak

8

Primary Motor Cortex

-located in precentral gyrus of each frontal lobe
-controls voluntary skeletal muscle movement
-so left primary motor cortex controls right side of body

9

Parietal Lobe

-ends anteriorly at central sulcus
-lateral limits at lateral sulcus (groove that separates frontal and parietal lobes from temporal lobe)
-contains primary somatosensory cortex and Wernicke's Area

10

Primary Somatosensory Cortex

-located in postcentral gyrus of each parietal lobe
-receives sensory input from skin, muscles, joints
-sensations from left side of body sent to right cortex and vice versa

11

Wernicke's Area

-overlaps areas in both parietal and temporal lobes
-speech comprehension area
-helps us understand written/spoken language and produce understandable language
-if damaged we can physically speak, but it's jibberish

12

Temporal Lobe

-contains primary auditory cortex, primary olfactory cortex and Wernicke's area

13

Primary Auditory Cortex

-part of temporal lobe
-interprets/distinguishes sounds
-stores auditory memories (remembers sounds and replays them)

14

Primary Olfactory Cortex

-part of temporal lobe
-processes smell information and provides conscious awareness of smells

15

Occipital lobe

-contains primary visual cortex

16

Primary Visual Cortex

-part of occipital lobe
-works with other areas in the occipital lobe to distinguish and interpret visual images

17

Insula

-deep to lateral sulcus
-involved with memory
-contains primary gustatory cortex

18

Primary Gustatory Cortex

-part of insula
-involved in processing taste information

19

Receptors

-structure that converts a sensory stimulus to a nerve impulse
-different ways to classify receptors (stimulus location, receptor distribution, or type of stimulating agent)
-focused here on stimulus location

20

Externoceptors

-near surface of body
-some are cutaneous receptors (in skin)
-special senses (sight, smell, taste, hearing, balance)

21

Interoceptors (Visceroceptors)

-primarily stretch receptors in smooth muscle of blood vessles and viscera

22

Proprioceptors

-provides information about muscles, joints, and tendons
-cerebellum receives and integrates proprioceptive info