ZOOLONE Module 11-16 (Long Exam 3)

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/395

flashcard set

Earn XP

Description and Tags

Cardiovascular system (& Lymphatic System), Respiratory System, Urinary System, Reproductive System, Nervous System, & Endocrine System

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

396 Terms

1
New cards
Diffusion in small or thin animals
cells can exchange materials directly with the surrounding medium
2
New cards
Diffusion in most animals
cells exchange materials with the environment via a fluid-filled circulatory system
3
New cards
Gastrovascular Cavity
cavity that:

- functions in both digestion & distribution of substances throughout the body
- body well is only 2 cells thick
- some cnidarians and flatworms
4
New cards
Circulatory System
organ system:

- has circulatory fluid, interconnecting vessels, & muscular pump (heart)
- 2 types: open or closed
- may vary in number of circuits in the body
5
New cards
Open Circulatory System
type of circulatory system:

- insects, arthropods, & some molluscs
- NO blood vessels
- contains hemolymph
6
New cards
hemolymph
- circulatory fluid that bathes the organs directly
- instead of blood
7
New cards
Closed Circulatory System
type of circulatory system:

- annelids, vertebrates, & cephalopods
- contains blood that is confined to vessels & distinct from the interstitial fluid
8
New cards
Cardiovascular System
organ system:

- closed circulatory system of humans & other vertebrates
- has 3 main types of blood vessels
9
New cards
3 main types of blood vessels
artery, vein, & capillary
10
New cards
artery
type of blood vessel:

- blood away from heart
- branch to arterioles
11
New cards
vein
type of blood vessel:

- blood back to the heart
- branch from venule
12
New cards
capillary
type of blood vessel:

- network of vessels
- site of chemical exchange between blood and interstitial fluid
- connect arteries and veins
- exchange of oxygen and CO2
13
New cards
2 Types of Circulation
Single Circulation & Double Circulation
14
New cards
Single Circulation
type of circulation:

- bony fishes, rays, and sharks
- with a 2-chambered heart
- blood leaving the heart passes through 2 capillary beds before returning
- contains 2 types of circuits
15
New cards
2 types of circuits in Single Circulation
Gill capillaries & Body capillaries
16
New cards
Double Circulation
type of circulation:

- amphibians, reptiles, & mammals
- oxygen-poor & oxygen-rich blood are pumped separately from the right & left sides of the heart
- NO mixture of oxygenated and deoxygenated blood
- maintains HIGHER blood pressure in the organs
- contains 2 types of circuits
17
New cards
2 types of circuits in Double Circulation
pulmocutaneous/pulmonary circuit & systemic circuit
18
New cards
pulmocutaneous circuit
type of circuit in Double Circulation:

- in frogs
- blood will pass through skin & lungs to get oxygen
- enter heart to pump out oxygenated blood to the systemic circuit
19
New cards
systemic circuit
type of circuit in Double Circulation:

- exchange of gases in capillaries
- deoxygenated blood enter vein back to the heart
20
New cards
pulmonary circuit
type of circuit in Double Circulation:

- reptiles & mammals
- oxygen-poor blood flows through the ___ to pick up oxygen through the lungs
21
New cards
3 heart chambers in the frog
right atrium, ventricle, & left atrium
22
New cards
blood flow of frog
RA → V → PCC → LA → V → SC → RA
23
New cards
Evolutionary Variation in Double Circulation
- some vertebrates (amphibians and many reptiles) with double circulation are intermittent breathers
- different blood flow & number of heart chambers among animals
24
New cards
blood flow of mammals
RV → pulmonary artery → lungs → pulmonary vein → LA → LV → aorta → body tissues → capillaries → superior/inferior vena cava → RA → RV
25
New cards
Mammalian Heart
- enclosed in pericardium
- 4-chambered heart (2 atria, 2 ventricles)
- contains valves
26
New cards
atrium
heart chamber:

- 2 in both amphibians & mammals
- relatively thin walls
- collection chambers for blood returning to the heart
27
New cards
ventricle
heart chamber:

- thicker walls
- contract much more forcefully
- chamber for blood leaving the heart
28
New cards
valves
part of mammalian heart:

- prevent backflow of blood
- 2 types: atrioventricular & semilunar
29
New cards
atrioventricular valve
type of valve:

- tricuspid valve & bicuspid valve
- one on each side; between the atrium & ventricle
30
New cards
tricuspid valve
atrioventricular valve between RA & RV
31
New cards
bicuspid valve
atrioventricular valve aka "mitral valve" between LA & LV
32
New cards
semilunar valves
type of valve:

pulmonary& aortic ___ valves
33
New cards
pulmonary semilunar valve
semilunar valve between RV & pulmonary artery
34
New cards
aortic semilunar valves
semilunar valve aka "aortic valve" between LV & aorta
35
New cards
Cardiac Cycle
2 phases: systole & diastole
36
New cards
systole
contraction or pumping phase in the cardiac cycle
37
New cards
diastole
relaxation or filling phase in the cardiac cycle
38
New cards
heart rate
- pulse
- number of beats per minute
39
New cards
heart murmur
backflow of blood through a defective valve
40
New cards
autorhythmic
- rhythm of the heart
- can contract w/o the help of signals from the nervous system
41
New cards
sinoatrial node
node in the heart:

- pacemaker
- sets the rate and timing at the which the cardiac muscle cells contract
- found in RA
- impulses go down to the atrioventricular (AV) node
42
New cards
electrocardiogram
- recording of the impulses that travel during the cardiac cycle
- ECG / EKG
43
New cards
Blood
connective tissue consisting of several kinds of cells suspended in a liquid matrix called plasma
44
New cards
Plasma
component of blood:

- contains inorganic salts as dissolved ions
- contains plasma proteins
- also contains water & substances transported by blood
- 55% of blood
45
New cards
blood serum
component of plasma:

- plasma WITHOUT the proteins
- obtained from centrifugation
46
New cards
electrolytes
another term for inorganic salts in plasma
47
New cards
plasma protein
component of plasma:

- influence blood pH & help maintain osmotic balance between blood & interstitial fluid
- some function in lipid transport, immunity, & blood clotting
48
New cards
Cellular Elements
component of blood:

- includes: Red blood cells, white blood cells, & platelets
- 45% of blood
49
New cards
red blood cell
Cellular Element in the blood:

- erythrocytes
- transport oxygen
- contain hemoglobin
- do NOT have nuclei & mitochondria
50
New cards
hemoglobin
- iron-containing protein that transports the oxygen
- each molecule binds to 4 molecules of oxygen
- present in red blood cells
51
New cards
white blood cells
Cellular Element in the blood:

- leukocytes
- function in defense either phagocytizing bacteria & debris or by mounting immune responses against foreign substances
- found both inside & outside of the circulatory system
- has 2 types
52
New cards
2 types of white blood cells
granulocytes & agranulocytes
53
New cards
3 types of granulocytes
basophil, eosinophil, & neutrophils
54
New cards
basophil
type of granulocytes:

release histamine
55
New cards
eosinophil
type of granulocytes:

- attack parasitic worm
- contain antihistamine
56
New cards
neutrophil
type of granulocytes:

- responds to site of infection
- target bacteria
57
New cards
2 types of agranulocytes
lymphocyte & monocyte
58
New cards
lymphocyte
type of agranulocytes:

immune response in the body
59
New cards
monocyte
type of agranulocytes:

turn into macrophages, leave blood circulation, then turn into phagocytes
60
New cards
platelet
Cellular Element in the blood:

- thrombocytes
- cell fragments that are involved in clotting
- formed in the bone marrow
- release thromboplastin and the other clotting factors
61
New cards
coagulation
formation of a solid clot from liquid blood
62
New cards
inactive fibrinogen
converts into fibrin after a cascade of complex reactions
63
New cards
thrombus
- blood clot formed within a blood vessel
- can block blood flow
64
New cards
Lymphatic System
organ system:

- located along lymph vessels
- plays a major role in the body’s defenses
- for production, maintenance, and distribution of lymphocytes
- transport fat molecules from small intestines
65
New cards
thymus gland & bone marrow
body parts besides lymphatic system that are for production, maintenance, and distribution of lymphocytes
66
New cards
Gas Exchange
supplies oxygen for cellular respiration and disposes CO2
67
New cards
Partial Pressure
- pressure exerted by particular gas in a mixture of gases
- apply to gases dissolved in liquids such as water
68
New cards
air or water
Respiratory Media
69
New cards
less oxygen
amount of oxygen available in water than in air
70
New cards
respiratory surfaces
- large, moist surfaces for exchange of gases between their cells and the respiratory medium
- gas exchange in here takes place by diffusion
71
New cards
ventilation
moves the respiratory medium over the respiratory surface
72
New cards
skin, gills, trachea, and lungs
examples of respiratory surfaces
73
New cards
gills
example of respiratory surface:

- outfoldings of the body that create a large surface area for gas exchange
- aquatic animals use this for ventilation
74
New cards
countercurrent exchange system
- system that fish use with their gills
- blood flows in the OPPOSITE direction to water passing over the gills
- blood is ALWAYS LESS saturated with oxygen than the water it meets
75
New cards
tracheal system
example of respiratory surface:

- found in insects
- network of branching tubes throughout the body
- tubes supply oxygen directly to the body cells
- respiratory and circulatory systems are separate
76
New cards
lungs
example of respiratory surface:

- found in humans and other mammals
- infolding of the body surface
- circulatory system transports gases between the ___ and the rest of the body
- size and complexity correlate with an animal’s metabolic rate
77
New cards
Mammalian Respiratory System
system of branching ducts coveys air to the lungs
78
New cards
alveoli
- air sacs at the tips of the bronchioles
- sites of gas exchange
79
New cards
moist film of the epithelium
oxygen diffuses through the ___ and into capillaries
80
New cards
surfactants
- secretion that coats the surface of the alveoli
- keeps respiratory system moist
- if not, causes friction and body problems
81
New cards
Breathing
- process that ventilates the lungs
- alternate inhalation and exhalation of air
82
New cards
Amphibian breathing
breathing of animal:

- ventilates its lungs by positive pressure (forces air down the trachea)
- air does NOT go straight to lungs
- air goes to buccal cavity pouch first
- has 4 steps
83
New cards
positive pressure
pressure when animal forces air down the trachea
84
New cards
Avian Breathing
breathing of animal:

- have 8-9 air sacs that keep air flowing through lungs
- air flow in 1 direction
- requires 2 cycles of inhalation and exhalation
- ventilation is highly efficient
85
New cards
mouth, posterior air sacs, lungs, anterior air sacs, & mouth
flow of avian breathing
86
New cards
Mammal Breathing
breathing of animal:

ventilate their lungs by negative pressure breathing
87
New cards
negative pressure
pressure when animal pulls air into the lungs
88
New cards
lung volume increases
what happens as the rib muscles and diaphragm contract
89
New cards
spirometer
instrument to measure breathing and know efficiency of lungs
90
New cards
tidal volume
volume of air inhaled with each breath
91
New cards
vital capacity
maximum tidal volume
92
New cards
residual volume
air in the lungs after exhalation
93
New cards
medulla oblongata
- breathing control center in our brain
- regulates and depth of breathing in response to pH changes in the cerebrospinal fluid (CSF)
94
New cards
decrease in pH
pH level in the cerebrospinal fluid when there are rising levels of CO2 in blood
95
New cards
negative feedback mechanism in respiration
rising levels of CO2 in blood = decrease in pH → signals from medulla increase rate & depth of ventilation in lungs → CO2 level falls & pH rises (becomes basic)
96
New cards
low partial pressure of oxygen and high partial pressure of CO2
partial pressures of oxygen & CO2 in blood arriving in the lungs relative to air in alveoli
97
New cards
Respiratory Pigments
- proteins that transport oxygen
- greatly increase the amount of oxygen that blood can carry
98
New cards
hemocyanin with copper
respiratory pigment:

- in arthropods and many molluscs
- act as oxygen-binding component
99
New cards
hemoglobin
respiratory pigment:

- in most vertebrates and some invertebrates
- inside the erythrocytes
100
New cards
1:4
ratio of molecules of hemoglobin and oxygen it can carry

hint: 1 molecule for each iron-containing heme group