Body Cavities Flashcards Preview

Human Form and Function > Body Cavities > Flashcards

Flashcards in Body Cavities Deck (22):
1

Dorsal Cavities

cranial cavity: brain
vertebral cavity: spinal cord,

2

Ventral Cavities

thoracic cavity
abdominal cavity
pelvic cavity

3

functions of vertebral column

carries and protects spinal cord and nerves
supports thoracic/rib cage and protects organs within
forms part of weight transfer route
absorbs shock forces passing from lower limb
attachment points for muscles which support column

4

intervertebral discs

from inferior C2 to superior S1

5

cranial cavity

contains brain and formed by cranial bones

6

vertebral cavity

contains spinal cord and formed by bones in the vertebral column

7

thoracic cavity

formed by ribs, muscles of chest, sternum and the thoracic portion of the vertebral column

8

cavities contained in the thoracic cavity

pleural cavity, pericardial cavity and mediastinum

9

pleural cavity

space between layers of the pleura that surrounds lungs (fluid-filled)

10

pericardial cavity

space between the layers of the pericardium that surrounds the heart

11

mediastinum

central portion of thoracic cavity between the lungs (from sternum to vertebral column; from lungs to diaphragm)
contains heart, thymus, oesophagus, trachea and large vessels

12

abdominal cavity

stomach, spleen, liver, gallbladder, small intestine and most of large intestine

13

peritoneum

serous membrane of the abdominal cavity

14

pelvic cavity

urinary bladder, portions of large intestine, internal organs of reproduction

15

how many cervical vertebrae

7 (C1-C7)

16

how many thoracic vertebrae

12 (T1-T12)

17

how many lumbar vertebrae

5 (L1-L5)

18

how many bones form the sacrum

5 fused sacral vertebrae

19

how many vertebrae form the coccyx

4 fused coccygeal vertebrae

20

which of the vertebrae are movable

cervical, lumbar and thoracic (not the sacrum and the coccyx)

21

annulus fibrosus

fibrous rings of fibrous cartilage - outer layer of discs

22

nucleus pulposus

soft, pulpy, highly elastic substance contained in the disc - inner layer