bio test 6 Flashcards

1
Q

the digestive system consists of a tubular

A

gastrointestinal tract and accessory organs

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2
Q

Mouth & pharnyx=

A

entry/mechanical dig

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3
Q

delivers food to stomach

A

Esophagus

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4
Q

preliminary digestion

A

Stomach

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5
Q

absorption and digestion

A

Small intestine

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6
Q

concentration of waste

A

Large intestine

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7
Q

waste storage

A

Rectum

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8
Q

Accessory organs=

A

liver pancreas gallbladder

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9
Q

which initiates the breakdown of starch

A

amylase

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10
Q

is controlled by the nervous system

A

Salivation

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11
Q

When food is ready to be swallowed the tongue is

A

moved it to the back of the mouth

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12
Q

is initiated by voluntary action,
then is continued under involuntary control

A

Swallowing

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13
Q

helps push food down

A

Peristalsis

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14
Q

is a muscular tube connecting the mouth to the stomach

A

The esophagus

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15
Q

the stomach Contains an extra layer of smooth muscles
for mixing food with

A

gastric juice

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16
Q

The low pH in the stomach helps

A

digest food proteins

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17
Q

Small intestine is about

A

Is about 4.5 m long

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18
Q

Small intestine consists of

A

duodenum, jejunum and ileum

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19
Q

when you lack the enzyme lactose you become

A

lactose intolerance

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20
Q

is secreted into the duodenum through the pancreatic duct

A

Pancreatic fluid

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21
Q

Pancreas Host of enzymes:

A

trypsin, chymotrypsin,
pancreatic amylase, and lipase

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22
Q

is the body’s largest internal organ

A

The liver

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23
Q

Stores and concentrates bile

A

Gallbladder

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24
Q

Much shorter than small intestine, but larger in diameter

A

Large intestine or colon

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25
Small intestine empties directly into the large intestine at a junction were two vestigial structures, __________ and _________ remain
cecum and appendix,
26
Compacted feces are stored in the ______, until it can be eliminated through the _______
rectum, anus
27
Chemically modifies the substances absorbed from the digestive tract before they reach the rest of the body
liver
28
brain gives signal that your full
Leptin
29
Transmits information to/from CNS Carries orders from brain to muscle Paired left/right nerves Cranial Nerves upper body
Peripheral Nervous System
30
Homeostasis Coordination of movement
Brainstem
31
Coordinate movement and balance
Cerebellum
32
Homeostasis Melatonin Production
Diencephalon
33
Information Processing Higher thinking
Cerebrum
34
all require the same basic things
Sensory systems
35
take external stimuli and create nerve impulse
Receptors
36
Auricle (pinna) and auditory canal
Outer Ear:
37
Tympanic Membrane, Ear Bones
Middle Ear
38
Cochlea, Vestibular Organs
Inner Ear
39
light enters through the
iris
40
Light is focused by
lens
41
contains receptor cells
Retina
42
Dopamine release by the
nucleus accumbens
43
particularly drives craving
Dopamine
44
The nucleus accumbens also coordinates with the ________ in a way that leads your brain to start planning for and taking action to seek the drug
prefrontal cortex
45
Testes contain highly-convoluted _____________, the sites of sperm production and
seminiferous tubules
46
Testosterone produced converts genitalia into ______
penis and scrotum
47
Sperm are delivered into the ____________ for storage and maturation
epididymis
48
From there, sperm enter another long tube, the ____________, then the _________, which empties into the penis
vas deferens, urethra
49
Glands assist in the production of __________, a complex mixture of fluids & sperm
semen
50
The _________ consists of erectile tissue columns
penis
51
Estrogen levels cause ___________ to thicken
endometrium
52
Hormones cause follicle to rupture releasing egg into _____________
Fallopian tube
53
The digestive juices from the liver are delivered to the
duodenum
54
Where does protein digestion begin
Stomach
55
Lipases are enzymes that break down ________
lipids
56
Which process involves the rhythmic contraction of muscles in the esophagus that carries food down to the stomach
peristalsis
57
What happens, digestion-wise, in the large intestine
Mainly absorption of water and some vitamins
58
What type of cells make up the nervous system?
Neurons
59
Which nerve carries information from the nose to the brain?
Olfactory
60
Which functions are controlled by the cerebellum?
Posture and coordination
61
What is the neurotransmitter GABA involved with?
Calming
62
Which part of the human eyes contains the receptor cells (rods and cones)?
Retina