Unit 6 - Human Systems Flashcards Preview

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Flashcards in Unit 6 - Human Systems Deck (46)
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1

appendicular skeleton

bones that make up the "appendages" (arms & legs) and the bones that support the arms & legs (shoulder and pelvis)

2

axial skeleton

bones that make up the head and neck and core (ribs, sternum, cranium)

3

smooth muscle

involuntary muscle that lines the organs

4

cardiac muscle

involuntary muscle that makes up the heart

5

skeletal muscle

voluntary muscle that is attached to the bones

6

tendon

connects bone to muscle

7

ligament

connects bone to bone

8

systemic circulation

blood is pumped throughout the body

9

pulmonary circulation

blood pumped from heart to lungs

10

dorsal

toward the back of an organism; used in dissection

11

anterior

towards the head of the an organism

12

posterior

towards the bottom/rear of an organism

13

ventral

towards the abdomen/stomach of an organism

14

peristalsis

involuntary muscle contractions that move food through the digestive system

15

endocrine gland

gland that releases substances/hormones directly into the bloodstream

16

exocrine gland

gland that releases substances/hormones through ducts to the organs

17

gallbladder

organ near the liver that stores bile

18

vaccination

injection of a weakened or dead virus to stimulate the immune system

19

antibiotic

drug or natural substance that can attach and destroy certain microorganisms

20

pathogen

a disease producing agent

21

nitrogen fixation

nitrogen in the atmosphere is converted into a from useful for living things by bacteria located at the roots of plants

22

saprobe

type of organism (like a bacteria) that lives off the nutrients of dead material
AKA decomposer

23

endospore

bacterium forms this by producing a thick internal wall that encloses DNA and a portion of its cytoplasm

24

conjugation

form of sexual reproduction in bacteria and process that involves an exchange of genetic information

25

binary fission

asexual reproduction in bacteria

26

facultative anaerobe

organism that can survive with or without oxygen

27

capsid

protein coat that protects nucleic acid in a virus

28

obligate anaerobe

organism that lives only without oxygen

29

inflammatory response

a reaction of the immune system to help the body; example is a fever or swelling

30

obligate aerobe

organism that must have a constant supply of oxygen