human body week 7,8,9

Question 1

what are the 3 layers of heart wall

Answer 1

epicardium
myocardium
endocardium

Question 2

HEART WALL - epicardium

Answer 2

thin transport
adipose tissue
blood vessels
upon heart

Question 3

HEART WALL - myocardium

Answer 3

composed of cardoimyocytes
arranged by spiral bundles

Question 4

NAME THE 4 HEART CHAMBERS

Answer 4

right atrium
left atrium
right ventricle
left ventricle

Question 4

HEART WALL - endocardium

Answer 4

lines the heart and its valves
simple squamous epithelium

Question 5

pulmonary circuit

Answer 5

is the right hand circuit purpose is to gas exchange and respiration

Question 6

systematic circut

Answer 6

• body - purpose is for circulation of oxygen and removing waste

Question 7

vena cavas 2 types

Answer 7

1. superior VC
2. Inferior VC

Question 7

coronary artery
1.
2.

Answer 7

1. right CA
2. Left CA

Question 8

1. right coronary artery
2. left coronary artery

Answer 8

1. comes from right side of aorta and feeds the right side
2. this splits into 2 smaller branches
   - left anterior descending artery (LAD)
   - left circumflex artery (LCX)

Question 9

name the 4 heart valves

Answer 9

1. pulmonary valve - right
2. tricuspid valve - right
3. mitral valve -left
4. aortic valve - left

Question 10

heart sounds
1.
2.

Answer 10

1. longer sound “lub”
2. “dup”

Question 11

cardiomyocytes

Answer 11

heart muscle cells that are joined by disc - desmosomes and gap junctions

Question 12

sinoatrial node - right atrium

Answer 12

1. sends an electrical signal to heart/ AV node via gap junctions

Question 13

Atrioventricular node “gate keeper”

Answer 13

SA node 1. sends an electrical signal to heart/ AV node via gap junctions
2. passes the signal to bottom of heart

Question 14

Atrioventricular bundle

Answer 14

3. signal travels to the intraventrical septum, then separates into right and left bundle

Question 15

Purkinje Fibres - large cells

Answer 15

4. pass down inter ventricular septum and turn upward

Question 15

electrocardium - P wave

Answer 15

shows atrial depolarisation

Question 15

electrocardium - QRS

Answer 15

shows ventricular depolarisation

Question 16

electrocardium - T wave

Answer 16

shows ventricular repolarisation

Question 16

cardiac output

Answer 16

amount of blood pumped out by one ventricle in one minute

Question 17

right ventricle

Answer 17

pumps into pulmonary arteries to lung

Question 17

left ventricles

Answer 17

pumps into aorta to body

Question 17

right atrium
revieves blood from….

Answer 17

receives blood via superior and inferior VC

Question 18

left atrium recieves from....

Answer 18

receives blood via 4 pulmonary veins

Question 19

gas exchange

Answer 19

respiratory and cardiovascular systems work together to deliver oxygen

Question 20

incoming air 9 points

Answer 20

1. nasal cavity 2. purifies, humidifies and warms air up 3. sinuses 4. pharynx 5. larynx 6. trachea 7. bronchi 8. bronchioles 9. alveoli

Question 21

nasal cavity is lined w ______

Answer 21

mucosa

Question 22

what are olfactory receptors ______

Answer 22

smell receptors has nerve endings

Question 23

conchae what is it

Answer 23

these are walls that have mucus covered bony projections

Question 24

pharynx name the 3 regions

Answer 24

1. nasopharynx 2. oropharynx 3. laryngoppharynx

Question 24

larynx

Answer 24

provides airway walls supported by hyaline cartilage

Question 25

thyroid cartilage also known as ______

Answer 25

adams apple

Question 26

cricoid cartilage what does this do

Answer 26

connects larynx to trachea

Question 27

trachea

Answer 27

carry blood not air runs from larynx to bronchi lined with mucosa

Question 28

bronchi

Answer 28

divides into 2 sides

Question 29

lungs left and right

Answer 29

left has 2 lobes right has 3 lobes

Question 30

pleural cavity

Answer 30

thin membranes that surround your lungs.

Question 31

Respiratory Tree

Answer 31

conducting tubes become smaller that ;

Question 32

alveoli

Answer 32

The alveoli are tiny air sacs at the end of your lungs' airways. alveoli = where oxygen and carbon dioxide are swapped.

Question 33

diaphragm

Answer 33

muscular dome underneath youre lungs

Question 34

when inhaling 1. thoracic cavity_______ 2. diaphragm ______

Answer 34

1. enlarges 2. flattens

Question 35

when exhaling 1. thoracic cavity_______ 2. diaphragm ______

Answer 35

1. reduces 2. rises

Question 36

external respiration happens in _______

Answer 36

gas exchange in lungs

Question 37

carbon dioxide transported through

Answer 37

plasma, protein and ion

Question 38

rhythm of breathing is controlled by _____ and ______

Question 39

excretion is _____

Answer 39

metabolic waste and eliminated from body fluids via sweat glands

Question 40

kidneys

Answer 40

filter bloods and produce urine

Question 41

three layers of connective tissue

Answer 41

fibrous fat capsule renel fascia

Question 42

name the three internal regions

Answer 42

1. cortex - outer granular 2. medulla - inner region , urine collecting duct 3. renal pelvis - collect urine

Question 43

what does ur nephron filter and produce

Answer 43

filters blood produces urine

Question 43

nephron

Answer 43

structural and functional unit of the kidney

Question 44

nephron wall

Answer 44

single layer of epithelial cell composed of renal corpuscle

Question 45

glomerulus

Answer 45

ball of fenestrated capillaries (small holes)

Question 46

name the 4 major renel process

Answer 46

1. Glomerular filtration 2. Tubular Reabsorption 3. Tubular secretion 4. excretion

Question 47

what is the juxtamedulary nephron responsible for

Answer 47

for concentrating urine

Question 48

what does ureters transport

Answer 48

urine from kidneys to bladder

Question 48

urinary bladder

Answer 48

temporary storage lies on pelvic floor

Question 49

urethra

Answer 49

urine from bladder to out of body