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Flashcards in Human Anatomy Deck (80)
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1

Four structural levels in body

cells, tissues, organs, systems

2

Cardio Vascular System parts

heart, blood vessels and blood

3

Flow of blood

heart to arteries to capillaries to veins to heart

4

liquid component of blood

plasma, carries hormones and food materials and gases

5

Arteries

Carry oxygen rich blood away from the heart

6

Veins

return oxygen poor blood to the heart

7

ARterioclerosis

hardening of the arteries an narrowing of the arteries

8

structure of the heart

two atria and two ventricles

9

Cardiac Cycle

period from the beginning of one heartbeat to the beginning of the next

10

contraction and relaxation

systole and diastole

11

Respiratory system

nose, nasal cavity, pharynx, larynx, trachea, bronchi and lungs

12

humans breathe ___ liters of pair per minute at rest, and ____liters during excerxise

5-6 and 20-30liters

13

Lungs rest ontop of the most important muscle of inspiration

the diaphragm

14

Digestive System 6 basic processes

1. ingestion of food into mouth
2.movement of food along digestive tract
3.mechanical prep of food for digestion
4.chemical digestion
5.absorption of digested food into the circulatory and lymphatic system
6.elimination of indigestible substances and wastes by defecation

15

Digestive system consists of one long tube, the

GI tract (gastrointenstinal)

16

prevents food into trachea to prevent choking

epiglottis

17

food enters stomach through

cardiac sphincter

18

stomach mechanically grinds food into

chyme

19

primary site for digestion and absorption of food

small intenstine

20

the ___ eliminate matabolic products like urea and creatinine

kidneys

21

Skeletal system functions

support, movement, protections storage, and formation of blood cells (hemopoiesis)

22

bones move at their

articulation (joints)

23

bones are composed of dense outer layer, ____ and a honey comb inner spongey structure

cortical bone and trabecular bone

24

Cortical Bone

provides strength, tendon attatchment sites for muscles and organ protection

25

Trabecular bone

mineral exchange, maintain skeletal strength

26

osteoblasts

bone cells that build bone

27

bone cells that break down bone

osteoclasts

28

remodling of bone is important becuase

repairs damage, prevents accumulation of too much old bone

29

Wolffs Law

indications that changes in bone structure coincide with changes in bone function

30

axial skeleton

skull, vertabrae, sternum and ribs to protect the central nervous system