Lecture MT 1

Question 1

coronal plane

Answer 1

the plane that divides the anterior and posterior parents of the body. down the head like a crown

Question 2

median plane

Answer 2

vertical plane that divides the body into right and left HALVES

Question 3

sagittal plane

Answer 3

any plane parallel to the median plane (not necessarily half)

Question 4

horizontal

Answer 4

divides into superior and inferior parts

Question 5

transverse

Answer 5

a plane perpendicular to a long axis

Question 6

superior/inferior

Answer 6

above (toward head)/below (toward body)

Question 7

anterior/posterior

Answer 7

ventral/dorsal

Question 8

medial/lateral

Answer 8

toward midline/further away from midline

Question 9

proximal/distal

Answer 9

closer to origin (body)/ further -ex. proximal head of humerus vs distal head of the humerus

Question 10

superficial/deep

Answer 10

closer to the surface of the body vs deeper (ex heart is deep to the ribcage)

Question 11

internal/external

Answer 11

inside the body vs outside the body (ex. external features vs internal features of a bone)

Question 12

ipsilateral/contralateral

Answer 12

same side of body vs opposite side of the body (used for strokes and such)

Question 13

components of the brainstem

Answer 13

midbrain, pons, medulla oblongata

Question 14

Somatic Nervous System

Answer 14

voluntary motor control and movement, conscious sensation to CNS from the skin, mucosal surfaces, and organs

Question 15

Autonomic Nervous System

Answer 15

visceral, involuntary, reflex cntrl of smooth muscle in many organ systems, cardiac muscle and secretory glands (viscera of internal organs)
-sensory innervation of viscera

Question 16

how many cervical spinal nerves

Answer 16

8

Question 17

how many thoracic spinal nerves

Answer 17

12

Question 18

how many cranial nerves

Answer 18

12 pairs

Question 19

how many lumbar spinal nerves

Answer 19

5

Question 20

how many sacral spinal nerves

Answer 20

5

Question 21

how many coccygeal spinal nerves

Answer 21

1

Question 22

how many cervical vertebrae

Answer 22

7

Question 23

how many thoracic vertebrae

Answer 23

12

Question 24

how many lumbar vertebrae

Answer 24

5

Question 25

how many sacral vertebrae

Answer 25

5 fused

Question 26

what is the cervical enlargement?

Answer 26

the segment of the spinal cord in the cervical region that is wider than the rest

Question 27

what is the lumbar enlargement?

Answer 27

the segment of the spinal cord in the lumbar region wider than the rest

Question 28

what is the conus medullaris?

Answer 28

The end of the spinal cord, located inferior to L1

Question 29

What is the filum terminale?

Answer 29

An extension of the pia mater that extends past the end of the spinal cord and attaches to the coccyx

Question 30

how do spinal cords exit the vertebral column and how could they be injured?

Answer 30

through intervertebral foramina- the potential of being compressed by herniated disk or narrowing of intervertebral foramen

Question 31

What information do dorsal rootlets contain?

Answer 31

sensory only

Question 32

What information do ventral rootlets contain?

Answer 32

motor only

Question 33

What type of information do dorsal rami carry?

Answer 33

sensory and motor

Question 34

What type of information do ventral rami carry?

Answer 34

sensory and motor

Question 35

What do the dorsal rami innervate?

Answer 35

erector spine muscles in the back and the skin lying on those muscles

Question 36

What does a ventral ramus innervate?

Answer 36

it is much larger, innervating the rest of the body, forms plexuses for motor and sensory of the limbs