anatomy final Flashcards

1
Q

what is the purpose of the thorax?

A

covers and protects major cardiopulmonary organs

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2
Q

angle of louis

A

the sternal angle

level of bifurcation of trachea into right and left main stem bronchi

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3
Q

how many true and false ribs?

A

1-7 are true
8-12 are false
11-12 are floating

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4
Q

where do you place a chest tube?

A

above the ribs to avoid trauma

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5
Q

what is the function of the lungs?

A

exchanges gases between air and blood

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6
Q

what is the homeostatic role of the lungs

A

regulates blood pH
regulates oxygen and carbon dioxide levels

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7
Q

what is external respiration?

A

exchange of gases in lungs

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8
Q

what is internal respiration?

A

exchange of gases within cells of the body

all cells require oxygen for metabolism and a means to remove carbon dioxide

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9
Q

conducting zone of the respiratory system

A

trachea
bronchi
bronchioles

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10
Q

respiratory zone of the respiratory system

A

respiratory bronchioles
alveolar ducts
alveolar sacs

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11
Q

what nerve innervates the lung?

A

phrenic nerve and vagus nerve

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12
Q

structures of the upper respiratory system

A

nose
mouth
pharynx
epiglottis
larynx
trachea

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13
Q

structures of the lower respiratory system

A

bronchial tree
lungs

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14
Q

sections of the pharynx

A

nasopharynx - posterior to nose
oropharynx - posterior to mouth
laryngopharynx - superior to larynx

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15
Q

what epiglottis?

A

lid or flap that covers that larynx and trachea so food does not enter the lungs

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16
Q

describe the trachea

A

windpipe
mucous membrane lining with cilia
c shaped cartilage rings

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17
Q

what do the bronchi terminate into

A

air sacs called alveoli

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18
Q

what are alveoli?

A

resembles a small balloon
CO2 diffuses from the blood and is exhaled
O2 diffuses form alveoli on inspiration

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19
Q

what is the parietal pleura?

A

outer most layer
inner surface of thoracic cavity and diaphragm

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20
Q

what is the visceral pleura?

A

inner layer
outer surface of the lung

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21
Q

intrapleural pressure

A

between 2 membranes
less than atmospheric pressure

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22
Q

how many lobes does the right lung have?

A

3

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23
Q

how many lobes does the left lung have?

A

2

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24
Q

where is the cardiac notch

A

only in the left lung

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25
how many lobe segments does each lobe have?
upper - 3 middle/lingula - 2 lower - 5
26
functions of lung
humidifies air so that membranes don't dry out warms air to maintain body temperature filters air - cilia move mucus toward oral cavity to be expelled
27
how many alveoli in the lungs
300 million - provide tremendous surface area
28
define compliance
ability of lungs to expand inspiration disease - emphy, asthma, pneumonia
29
define elasticity
ability to recoil expiration
30
surface tension
force between water molecules can cause the collapse of lungs decreases compliance
31
surfactant
type II cells breaks surface tension within alveoli
32
premature babies and surfactant
synthesis of surfactant starts in 24-28th week of gestation need injections of surfactant if premature - essential to breathe
33
what happens if there is less surfactant
more surface tension - more risk of collapse cannot breathe without surfactant
34
restrictive lung disease
less compliance greater stiffness cannot inhale air cannot enter pulmonary fibrosis
35
obstructive
loss of recoil cannot exhale air cannot leave emphy, COPD
36
increase in volume of intrathoracic cavity
increases lung volume decreases intrapulmonic pressure causes air to rush into lungs inspiration
37
decrease in volume of intrathoracic cavity
decreases lung volume increases intrapulmonic pressure causes air to rush out of lungs expiration
38
diaphragm
flattens as it contracts causes pressure changes that cause inspiration contraction moves abdo contents forward and down
39
muscles that elevate the ribs
external intercostals scalenes sternocleidomastoid pectoralis minor pulls ribs laterally and upward
40
muscles that pull the ribs downwards in forced expiration
internal intercostals rectus abdominis internal oblique muscles of abdominal wall
41
is expiration passive or active?
passive recoil of diaphragm decreases intrathoracic cavity volume no muscular effort needed at rest
42
airflow resistance equation
airflow = P1 - P2 / resistance larger resistance = less airflow
43
what is the biggest factor affecting airflow at rest?
diameter of airway
44
what does bronchodilation do in exercise?
decreases resistance to airflow
45
what is pulmonary ventilation (VE)
amount of air moved in and out of lungs in a given time period anatomical dead space + alveolar ventilation VE = TV x f 5000ml = 500ml x 10
46
tidal volume (TV)
amount of air moved per breath 600ml in men it is greater in trained athletes
47
residual lung volume (RLV)
air left in lungs after max exhalation 1200 ml in men
48
inspiratory reserve volume (IRV)
maximum inspiration at end of tidal inspiration 3000ml
49
expiratory reserve volume (ERV)
maximum expiration at end of tidal epiration 1200ml
50
total lung capacity (TLC)
volume in lungs after maximal inspiration 6000ml TLC = IC + TV + ERV + RLV
51
forced vital capacity (FVC)
maximum volume expired after maximum inspiration 4800ml FVC = IRV + TV + ERV
52
inspiratory capacity (IC)
max volume inspired following tidal expiration 3600ml IC = IRV + TV
53
functional residual capacity (FRC)
volume in lungs after tidal expiration 2400ml FRC = ERV + RLV
54
what happens to lung volumes during pregnancy?
tidal volume increases expiratory volume decreases
55
where does fluid leak out when the heart pumps?
the heart squeezes some fluid out of the capillaries
56
pressure in early arteries
120 mmHg
57
pressure in right atrium
5 mmHg
58
what do B and T cells do?
bring cells to infection so that they can fight it.
59
function of lymphatic system
collect excess protein-containing interstitial fluid and return it to bloodstream
60
what is lymph?
fluid that carries cells that help fight infection and disease
61
four functions of lymphatic system
transport clean fluid back to blood drains excess fluids from tissues removes debris from cells transports fats from digestive system
62
amount of blood lost throughout capillaries
starts at 20 liters ends at 17 liters 3 liters drained by lymphatic system
63
describes how blood leaves the capillaries
wall of capillaries have holes in them blood oozes out fills space between cells - called lymph RBC, WBD, proteins are too larger to come out
64
what happens to blood when it loses its plasma?
gets thicker and thicker high viscosity will cause blood clots tissues will get puffed up and cause swelling
65
describe how lymphatic vessels flow
they are a one way system to the heart
66
describe the walls and valves of the collecting vessels in lymphatic
walls are thinner more internal valves
67
where are capillaries absent from?
bones teeth bone marrow entire nervous system
68
what drives movement of lymph
hydrostatic pressure drives entry of lymph into lymphatic capillaries
69
explain endothelial cells that form walls of lymphatic capillaries
not tightly joined edges loosely overlap forming minivalves
70
size of lymph node how many in body
1 to 25 mm 600 in body
71
what do WBCs do to lymph inside the nodes
breakdown and help with immunity
72
what cleans the lymph as it flows through the node?
lymphocytes macrophages
73
how can nodes indicates infection?
swollen nodes are early indication of infection
74
what are lacteals
lymph vessels that take up lots of fats and chylomicrons
75
where does right lymphatic duct drain?
into junction of right internal jugular and right subclavian veins
76
where does the thoracic duct drain into?
left internal jugular and subclavian veins
77
what is the largest lymphatic organ
spleen
78
what does the spleen do?
filters blood recycle old RBCs store platelets and WBCs fight certain bacteria like pneumonia and meningitis
79
how many lobe in thymus gland?
2
80
development of thymus gland
max size in puberty decreased size in maturity
81
function of thymus
differentiation and maturation of T cells
82
what do T cells do once they leave the thymus?
provide immunity
83
how does edema happen?
when flow of lymph is interfered with
84
lymphedema
swelling in tissues can be due to tumor pressure, parasites or surgery
85
describe elephantiasis
blockage by parasitic worms infection acquired in childhood causing hidden damage to lymph system manage by: wrapping infected limbs and daily washing
86
what is the endocrine system?
all glands of body that secrete hormones directly into the blood stream DO NOT CONTAIN DUCTS
87
what is the difference between endocrine and exocrine?
endo - no ducts exo- has ducts
88
what stimulates endocrine glands?
nervous system chemical changes in body
89
what is a gland
a structure that produces some substance or material two types - endo and exo
90
explain lock and key mechanism in endocrine system
hormone is key specific sit is lock
91
are all tissues that are exposed to hormones affected?
no. they only affect their target tissues. they bind to specific receptors and are stimulated by that reaction
92
basic hormone action
cells have receptors and bind only to that specific hormone type
93
do hormones carry information?
no, but they are only released to stimulate a chemical reaction
94
describe tropic hormones
secreted by endocrine to stimulate the activity of another endocrine gland
95
what is the role of the hypothalamus
monitors the body for temperature, pH, ect signals pituitary gland if something needs corrected or an emergency needs a response receives sensory info from the thalamus
96
what is the adenohypophysis?
anterior lobe of pituitary
97
what is the neurohypophysis?
posterior lobe of pituitary
98
hypothalamic control of hormone secretion from adeno:
has neurons that produces hormones and release them. they travel directly to anterior pituitary and release them into systemic circulation
99
location of pituitary gland
sits on hypophyseal fossa connects to hypothalamus through stalk called the infundibulum
100
growth hormone (GH)
signals growth of body
101
prolactin
stimulates breast tissue to produce milk
102
thyroid stimulating hormone (TSH)
stimulates thyroid gland to secrete hormones that influence metabolism
103
adrenocorticotropic hormone (ACTH)
stimulates adrenal gland to signal hormones that help deal with stress
104
melanocyte stimulating hormone (MSH)
stimulates melanocytes to produce more melanin and darken the skin
105
follicle stimulating hormone (FSH)
testes or ovaries to stimulate maturation of egg/sperm and induce secretion of sex hormones
106
lutinizing hormone (LH)
during menstrual cycle and signals ovulation
107
location of neurohyopohysis
part of brain and composed of neurons
108
what does neurohypophysis do?
stores hormones produced by hypothalamus and release when stimulated
109
antidiuretic hormone (ADH)
stimulates collecting tubules of kidney to concentrate urine to reduce water loss.
110
diabetes insipidus
pee alot (polyuria) and fell thirsty (Polydipsia). not diabetes but have similar S&S
111
oxytocin
induces contractions of smooth muscle of sexual organs
112
describe thyroid gland
two lobes butterfly shape
113
thyroid hormone
contain iodine increase metabolic rate
114
calcitonin
reduces excessive calcium by slowing down osteoclast activity actively secreted in childhood to increase bone formation
115
describe parathyroid gland
posterior to thyroid gland 2-4 pairs of glands
116
parathyroid hormone (PTH)
opposes calcitonin increases calcium levels in blood by activating osteoclast, stimulating kidney to reabsorb calcium, or activation of vitamin D production for calcium to be absorbed from food
117
adrenal gland
two glands within one structure
118
adrenal medulla
part of autonomic releases adrenaline or epi to assist fight or flight
119
aldosterone
secreted by adrenal cortex response to decrease in blood volume or BP stimulates kidneys to reabsorb more water
120
glucocorticoids
secreted by adrenal cortex keep blood glucose high to maintain brain activity during stressful situations can direct lymphocytes or decrease inflammation
121
pineal gland
located in brain and controlled by hypothal composed of endocrine cells that secrete melatonin to regulate internal body clocks
122
pancreas
produces digestive enzymes
123
insulin
released by pancreas when BG levels are high stimulate absorption of glucose released by beta cells
124
glucagon
released by pancreas wehn BG levels are low. stimulate liver to release sugar released by alpha cells
125
thymus
secretes thymic hormones T-lymphocytes become immunocompetent
126
gonads
secrete sex hormones androgens into test, est, progest maintain sex characteristics involved in reproduction
127
what hormone is produced in kidneys?
erythropoietin (EPO) stimulates production and maintenance or RBC released when kidney detects decres in oxygen red bone marrow produces more RBC
128
what is increased RBC called
polycythemia
129
anterior lobe releases which hormones
GH TSH FSH LH prolactin ACTH
130
posterior lobe releases which hormones
ADH oxytocin - stimulates uterus
131
describe the kidneys
paired, about fist size partially protected by the 11th and 12th ribs
132
are the kidneys parallel?
no, left is higher than the right because the liver is below the right kidney.
133
how much of cardiac output do kidneys receive?
25%
134
2 major functions of the kidneys
filtration of blood removes metabolic wastes from the body, esp those containing nirtogen
135
what do the ureters connect?
kidneys to urinary bladder
136
what is the urethra?
tube for excretion
137
where is the kidney located?
under the back muscles below the lowest ribs underneath the adrenal gland
138
renal medulla contains:
contains pyramids and papilla
139
renal pelvis contains:
calyx: division of pelvis
140
what is the functional unit of the kidney?
nephron
141
what is glomerular filtration rate?
volume of plasma filtered / unit time approx 180 L/day urine output is about 1-2 L/day
142
what does kidney regulate?
blood volume and composition electrolytes blood pH blood pressure
143
what do diuretics do?
lower BP release everything from kidney more water in blood = kidney working harder
144
inside the renal corpuscle
glomerulus - capillaries glomerular or Bowman's capsule
145
blood flow through nephron
enters cluster of tiny blood vessels (glom) thin walls of glom allow smaller molecules, wastes, and fluid to pass into the tubule larger molecules stay in blood vessel
146
substances secreted from kidney
hydrogen creatine ions other wastes such as drugs
147
defne tubular secretion
transfer of materials from peritubular capillaries to renal tubular lumen - bloodstream into filtrate occurs mainly by active transport and passive diffusion
148
define reabsorption
movement of essential solutes and water from filtrate back into bloodstream
149
bowman's capsule:
receives filtrate
150
proximal convolutes tubule:
reabsorption of water and solutes
151
nephron loop or loop of henle:
regulates concentration of urine
152
distal convolutes tubule and collecting duct
reabsorption of water and electrolytes
153
what is creatine
chemical compound left over from energy producing processes in muscles exits body as waste in urine
154
where is it abnormal for glucose to be?
anywhere past the proximal convolutes tubule
155
what happens in kidney when decreased BP is detected?
adrenal gland is stimulated to release aldosterone, which increases sodium reabsorption from the urine
156
hyperaldosteronism can cause:
high BP, low potassium and an abnormal increase in blood volume
157
what does aldosterone do?
increase blood volume and blood pressure by causing kidney reabsorption of water and sodium
158
ADH vs aldosterone
ADH just reabsorbs water aldosterone reabsorbs water and sodium
159
what does angiotensin II do?
stimulates adrenal cortical cells to secrete aldosterone
160
erythropoietin (EPO):
produced mainly by kidneys stimulates production and maintenance of RBC
161
when is EPO released?
when kidney detects decrease in oxygen. causes red bone marrow to produce more RBC
162
what is the pathology of increased RBC called?
polycythemia
163
describe the bladder
lined with epithelium - can stretch lined with rugae trigone on posterior wall where the ureters and urethra open does not have rugae. trigone is rigid
164
what is micturition
voiding, urination internal urinary sphincter - involuntary external urinary sphincter - voluntary there are stretch receptors in bladder wall
165
three functions of the kidney
removes nitrogenous wastes ~urea ~uric acid ~creatinine ~ammonia maintains homeostasis ~fluid balance ~electrolyte balance ~acid-base balance excretory organ ~via blood filtration and formation of urine
166
where does nitrogenous waste come from
primarily from breakdown of proteins
167
aging and renal function
by age 35, begin to lose nephrons by age 80, 30% reduction in nephron capactiy
168
what does water follow?
sodium
169
what does high sodium concentration equal?
more reabsorption of H2O
170
afferent arteriole dilation causes (renal)
increase in fluid volume overhydration high output heart failure
171
efferent arteriole constriction causes (renal)
kidney pathology
172
afferent arteriole constriction causes (renal)
hypertension arteriolar spasm
173
functions of digestive system
ingest food break down food into small molecules nutrient absorption eliminate nondigestable waste
174
structures included in GI tract
mouth pharynx esophagus stomach small intestine large intestine rectum
175
define ingestion
material enters mouth
176
define mechanical processing
crushing/shearing makes material easier to move through tract
177
define digestion
chemical breakdown of food into small organic compounds for absorption occurs in stomach and small intestine
178
define secretion
release of molecules by epithelium of GI tract
179
define absorption
movement of material across digestive epithelium
180
define excretion
removal of waste products
181
oral cavity, teeth, tongue function in digestion
mechanical processing
182
liver function in digestion
secretion of bile, storage of nutrients
183
gallbladder function in digestion
storage and concentration of bile
184
pancreas function in digestion
exocrine - digestive enzymes endocrine - secrete hormones
185
large intestine function in digestion
prepare for elimination dehydration causes compaction
186
what do digestive enzymes do?
break molecular bonds in large organic molecules
187
what is hydrolysis?
water is used to break down a compound
188
function of carbohydrases
break bonds between simple sugars
189
function of proteases
break bonds between amino acids
190
function of lipases
separate fatty acids from glycerides
191
type of muscle in digestive tract
smooth muscle
192
what is peristalsis
waves of contractions that push food through the digestive tract
193
longitudinal muscle in peristalsis
contracts backwards ahead of bolus
194
circular muscle in peristalsis
contracts downward behind bolus forces bolus forwards
195
function of mouth and pharynx in digestion
mechanical processing adding fluids - mucus and salivary gland secretion limited digestion of carbos and lipids
196
describe esophogus
10 in long and .8 in wide secretes mucus takes solid food and liquids to stom heartburn - acid go back up behind trachea
197
major functions of the stomach
storage of ingested food breakdown of ingested food disruption of chemical bonds in food by acid and enzymes produce hydrochloric acid to kill bacteria
198
what acid does stomach produce?
hydrochloric acid
199
how does stomach perform preliminary digestion of proteins?
by pepsin
200
how does stomach perform preliminary digestion of carbos?
amylase
201
how does stomach perform preliminary digestion of lipids?
lipase
202
describe stomach contents
become more fluid 2.0 pH pepsin activity increased to digest proteins
203
does stomach absorb nutrients?
No. only digests
204
how much absorption occurs in the small intestine?
90%
205
describe the duodenum
closest to stom mixing bowl - receives chyme from stom and digestive secretion from pancreas and liver neutralizes acid before damage absorptive surfaces
206
where are acids neutralized in digestive system?
duodenum
207
describe the jejunum
middle segment 2.5 meters long
208
the jejunum is the location of most:
chemical digestion nutrient absorption
209
describe the ileum
final seg 3.5 meters long ends at ileocecal valve
210
what does ileocecal valve do?
controls flow of material from ileum into large intestine
211
how long does intestinal absorption take for material to pass from duodenum to end of ileum?
5 hours
212
describe large intestine
horseshoe shaped from ileum to anus inferior to stomach and liver frames small intestine called large bowel 1.5 meters long, 7.5 cm wide
213
large intestine functions
reabsorption of water compaction of intestinal contents into feces absorption of imp vitamins produces by bacteria storage of fecal material prior to defecation
214
describe the cecum
an expanded pouch receives from the ileum stores materials and begins compaction
215
describe the appendix
slender and hollow 9 cm long dominated by lymph tissue
216
describe the colon
larger diameter and thinner wall than small intestine wall of colon forms a series of pouches called haustra
217
what do haustra permit
expansion and elongation of colon
218
what does the appendix help do?
storage of good bacteria for digestion
219
what is absorbed in the large intestine?
reabsorption of water reabsorption of bile salts in the cecum absorption in vitamins produced by bacteria absorption of organic wastes
220
3 vitamins produced in large intestine
vitamin K (fat soluble) required by liver biotin (water soluble) in glucose metabolism pantothenic acid B5 (water soluble) for hormones
221
describe the rectum
last 6 inches of digestive tract expandable for storage of feces movement of fecal material triggers defecation
222
what is the anus?
exit orfice
223
accessory digestive organs
pancreas liver gall bladder
224
where does the pancreas lie?
posterior to stomach from duodenum toward spleen
225
2 functions of the pancreas
secrete insulin and glucagon into bloodstream exocrine cells of duct system secrete array of enzymes
226
what are hepatocytes?
liver cells adjust circulating levels of nutrients
227
3 functions of the liver
metabolic function hematological regulation cleans toxins out of blood bile production - aids in digestion of lipids
228
what does the liver regulate?
composition of circulating blood nutrient metabolism waste product removal vitamin storage (A, D, E, K) nutrient storage (iron)
229
what is the largest reservoir in the body?
the liver
230
how much cardiac output does the liver receive?
25%
231
what are the functions of hematological regulation?
removal of circulating hormones removal of antibodies removal or storage of toxins synthesis and secretion of bile
232
describe the gall bladder
pear shaped muscular sac stores and concentrates bile prior to excretion located on the posterior surface of liver's right lobe
233
what is the cystic duct?
extends form gall bladder
234
what forms the common bile duct?
cystic duct and common hepatic duct dumps bile into duodenum
235
what are the functions of the gall bladder?
stores bile releases bile into duodenum
236
what kind of diets cause gallstones?
fatty diets.
237
what is the largest and heaviest organ in the body?
skin
238
what are the 2 layers of skin?
epidermis - outer dermis - inner
239
where do the appendages of the skin develop?
from the epidermis
240
what is beneath the dermis?
hypodermis NOT part of skin
241
5 functions of the skin
protection: kill bac, against UV, block moisture body temp regulation cutaneous sensation synthesis of vitamin D excretion - sweat
242
define conduction
surface contacts surface
243
define convection
fluid passing through surface
244
5 layers of the epidermis
stratum corneum stratum lucidum stratum granulosum stratum spinosum stratum basale
245
which layer of epidermis produces stem cells?
stratum basale
246
what protein makes the skin waterproof?
keratin
247
what part of skin is highly vascular and has afferent nerve endings?
dermis
248
what is a dermal papilla?
cone shaped protrusion at base of follicle which feeds blood and nutrients to hair bulb
249
what is a sebaceous gland?
lubricates and keeps hair healthy and shiny
250
what are arrector pili?
tiny muscle anchored to hair follicle stimulus cause them to contract and hair to stand up
251
2 layers of the dermis
papillary reticular
252
describe the papillary layer
loose, areolar CT finger like
253
describe the reticular layer
well vascularized elastin fibers collagen provides structure and strength
254
3 degrees of burns
first: superficial epi second: epi through superficial dermis third: entire epi and dermis
255
who is most prone to integ injury
older people vit D production decreases blood supply decreases dermis is thin
256
function of vestibular system
maintain equilibrium of balance by detecting angular and linear acceleration of head
257
what do the vibrational waves do in vestibular?
convey info about sound, position, balance to central sensory neural structures
258
what is the utricle sensitive to?
change in horizontal movement
259
what does the saccule do?
gives info about vertical acceleration
260
describe push-pull systems in vestibular
if one canal is stimulated, the other is inhibited
261
function of the semicircular canals
detect angular or rotational acceleration of head filled with endolymph
262
ampulla
bulge along canal contains crista
263
cilia
project into gelatinous cupula
264
vestibulo-ocular reflex
helps stabilize visual field during head movements leads eye opposite movement to steady gaze
265
horizontal semicircular canal
rotation of vertical axis
266
anterior SCC
sagittal plane
267
posterior SCC
frontal plane
268
symptoms of vestibular problems
vertigo nausea vomiting intolerance of head motion unsteady gait postural instability nystagmus - rapid eye movement
269
describe angina pectoris
chest pain caused by reduced blood flow to the heart feels like squeezing, pressure, heaviness, tightness
270
atherosclerosis
build up of plaques breaking off leading to myocardial infarction
271
arteriosclerosis
inability of vessels to dilate and lead to MI
272
congestive heart failure
heart is unable to pump blood more fluid sits in R vent and heart cannot send it to lungs so it backs up into R atrium
273
systolic heart faliure
decreased pumping function of the heart
274
diastolic heart failure
thickened and stiffened heart does not fill with blood properly
275
elevated ST segment
MI
276
depressed ST segment
ischemia
277
riak factors for heart failure
CAD HPTN valvular heart disease diabetes congenital defects obesity age smoking high or low hematocrit
278
ejection fraction
percentage of blood that is pumped out of heart during each beat
279
preload
blood volume and stretch of ventricle
280
afterload
arteriosclerosis atherosclerosis HPTN
281
faster velocity of blood
decreases oxygen and nutrient uptake by tissues
282
where is the most glucose stored?
muscles liver
283
somatostatin
balances insulin and glucagon
284
hyperglycemia
acute: polyuria profound: coma, death
285
insulin resistance
when cells don't respond to insulin properly
286
ketones
produced by liver when body breaks down fat for energy sign that body is burning fat instead to glucose
287
proteinuria
abnormal amounts of protein in urine
288
pleural effusion
fluid builds up in pleural space
289
ascites
fluid builds up in abdomen
290
pulmonary hypertension
heart's right side works harder blood is forced backward into tricuspid valve
291
common causes of jugular vein distension
congestive heart failure constrictive pericarditis hypervolemia superior vena cava obstruction tricuspid valve stenosis
292
underlying causes of pulmonary hypertnesion
high BP in lung's arteries CAD high BP liver disease emphysema
293
bronchiectasis
larger sized bronchioles in lungs become wider and destroyed
294
bronchitis
cough that produces sputum lasts 1 week to 21 days