Lecture Notes Circulatory Flashcards Preview

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Flashcards in Lecture Notes Circulatory Deck (51):
1

Which gland produces calcitonin?

Thyroid

2

Which is responsible for circadian rhythm?

Pineal gland (melatonin)..

3

The total area that a single group of
receptors senses is called what?

Receptive field

4

Receptor of joints and muscles (position)?

Proprioceptors

5

Referred pain

Sensed in another area

6

Not noticing a stimulus after a given time is called what?

Adaptation

7

Gustatory begins with

The gustatory cells; on the tongue Anterior of the tongue = facial nerve (VII), Posterior = the glossopharyngeal nerve (IX)..

8

6th taste?

Calcium found in rats

9

5 basic tastes: Metal ions (Na+, K+)

Salty

10

5 Basic tastes: Organic compounds

Sweet

11

5 Basic tastes: H+ ions

Sour

12

5 Basic tastes: Alkaloids (OH-)

Bitter

13

5 Basic tastes: Amino acids

Unami ("savory")

14

Interpretation of olfaction is in?

The temporal lobe

15

How many different odors are detected?

50-60

16

Olfactory hairs increase

Surface area

17

Olfactory nerve fibers take signals through

The foramen of the cribriform plate to the olfactory bulb

18

Vascular tunic, aka?

Choroid; middle layer. Dense capillary network bringing blood supply to the retina

19

Interpretation of sight is

In the occipital lobes of cerebrum

20

Ciliary muscle relaxes it

Puts tension on suspensory ligaments. Lens flattens

21

Ciliary muscle contracts

Suspensory ligaments relax. Lens thickens

22

Focus in front of retina

Myopia-near sighted

23

Focus behind the retina

Hyperopia-far sighted

24

What condition causes: Cloudy lens, Opacity can occur on the cornea, Need for transplant

Cataracts

25

static balance

Vestibule

26

Dynamic balance

Semi-circular canals- dynamic balance..

27

The inner ear has

Cochlea, vestibule and semi-circular canals

28

Ampulla is

The swollen area at base of a semicircular canal. Contains hair cells & cupula

29

Vestibule is

Utricle & saccule; each with a macula which senses static position, head tilt, or shifts in gravity

30

Increased by ossicles

Amplitude

31

Area of sharpest vision? What receptors?

Fovea centralis, cones

32

What anatomy happens at the blind spot?

Nerve fibers and blood vessels exit eye

33

What does ciliary muscle do to make the lens fatter, wider?

Contracts (which moves ciliary body closer to the lens)

34

What controls pupil size?

Muscles of the iris

35

Why do we have to have a double pump?

Blood picks up O2 at lungs
• Happens in lung capillaries
• After capillaries pressure decreases
• “Second pump” increases pressure to send oxygenated blood to the body
• Blood has to be re-pressurized after going to the lung

36

Capillary beds supply the cardiac tissue with

Oxygen & nutrition

37

Cardiac muscle contracts

Systole

38

in-between contractions, cardiac muscle is relaxed

Diastole

39

Cardiac cycle

1) First, the two atria contract (atrial systole)
2) Then atrial diastole & ventricular systole begins (“lub”). Sound of A-V valves closing
3) When ventricular systole ends the semilunar valves shut ("dub")
4) There is about 1⁄2 second when all four chambers are in diastole, heart fills with blood. Cycle repeats (70-80/minute)..

40

Precapillary sphincter allows for

control of blood flow (thermoregulation)

41

Capillaries are

Smallest & most delicate
Endothelium & basement membrane (basal lamina) only

42

What vessel by-passes the fetal liver?

Ductus venosus

43

Name two ways to by-pass the fetal lungs

Foramen ovale & Ductus arteriosus

44

What does blood transport?

Nutrients and O2 as well as metabolic wastes to be excreted

45

How does blood play a role in homeostasis?

Temperature, blood pressure, salts.
Specialized immune cells protect from infection & disease

46

Stem cell that produces blood cells

Hemocytoblast

47

Each heme binds to how many O2 molecules?

One

48

Universal donor

Type O

49

Universal receiver

Type AB

50

What is the Rh system named for?

Rhesus monkey

51

Which pumps blood to the body (not lungs)?

Left ventricle