Mocks Flashcards
what phase of the cardiac cycle does the plateau period correspond with?
2
what phase of the cardiac cycle does the depolarisation of ventricles correspond with?
phase 3
when are neutrophils released?
- bacteria
- acute inflammation
when are basophils released?
inflammatory reaction
when are eosinophils released?
parasitic infection
when are cytotoxic T-lymphocytes released?
acute and chronic infection
what is the function of the ductus arteriosus?
pulmonary trunk -> aorta (bypass lungs)
what does ACh act on?
M3 muscarinic
what hydrolyses triglycerides?
lipoprotein lipase
what is oxidative deamination?
glutamate -> ammonium
odds
number of events/number of non-events
what are laminae connected by?
ligamentum flavum
L1 level
SMA
L2 level
renal arteries
L3 level
IMA
what is in the superficial perineal pouch?
- erectile tissue of clitoris and penis
- ischiocavernosus
- bulbospongiosus
- superficial transverse perineal muscle
what is in the deep perineal pouch in females?
- urethra
- external urethral sphincter
- vagina
what is in the deep perineal pouch in males?
- bulbourethral glands
- deep transverse perineal muscles
T4 dermatome
nipple
T10 dermatome
umbilicus
L1 dermatome
suprapubic region
L2 dermatome
inguinal region
where is desmin found?
muscle cells
when does the primitive streak appear?
week 3
what is found at the angle of Louis (~T4)?
- tracheal carina
- loop of left recurrent laryngeal nerve
where do the recurrent laryngeal nerves loop?
left - arch of aorta
right - right subclavian
how long does the cardiac cycle last?
PQRS = 0.6s T = 0.2s
-> 0.8s
where are purkinje fibres found?
endocardium
where are perinuclear hofs found?
plasma cells
what is a generator potential?
graded, non-propagated potential changes in sensory end organs
what is the primary copper transporter in the blood?
ceruloplasmin
what vitamins are stored in the liver?
A
B12
D
K
what are the stages of change?
- pre-contemplation
- contemplation
- action
- maintenance
- relapse/stable change in lifestyle
what are the symptoms of brown-sequard syndrome?
ipsilateral loss of:
- motor
- 2-point discrimination and proprioception
contralateral loss of:
- pain and temperature
what are the differences between UMN lesion and LMN lesion?
UMN - hyperreflexia
LMN - hyporeflexia
what acts on Leydig cells?
LH
where is erythropoeitin produced?
renal cortex (by interstitial cells)
which salivary gland is not continuously active?
parotid gland
what causes the dicrotic notch?
increased pressure when closing aortic valve due to blood rebounding against valve
where are melanocytes found?
stratum basale
what is the typical tidal volume in an adult?
500ml
what is the typical residual volume / expiratory reserve volume in an adult?
1200ml
what is the typical functional residual capacity in an adult?
2400ml
what is the typical inspiratory reserve volume in an adult?
3000ml
what is the typical total lung capacity in an adult?
5900ml
what is the conducting zone?
top of trachea -> end of terminal bronchioles
what is the respiratory zone?
respiratory bronchioles -> alveoli
what layer of the epidermis is only 1 cell thick?
stratum basale
what releases trypsin?
pancreas
what releases insulin-like growth factor?
liver
what nerve is responsible for the jaw-jerk reflex?
trigeminal
what do intrafusal muscle fibres sense?
stretch
- monitor muscle length & rate of change
what are extrafusal muscle innervated by?
alpha motor neurons
what is a motor unit?
alpha motor neuron + the extrafusal muscle fibres it innervates
what detect change in muscle length and rate of change?
type Ia and type 2 sensory motor fibres
what size unit detects fine control?
smaller
what is the major cation in the ECF?
Na+
are there more type 1 or type 2 pneumocytes and which are bigger?
type 2
where does 95% of starch digestion occur?
small intestine
what is the effect of cortisol?
inhibits GnRH
how many calories are there per unit of alcohol?
64kcal
what type of inheritance is associated with haemophilia?
X-linked recessive
do males or females generally have a lower BMR?
females
what is the function of cholecystokinin?
stimulates the pancreas to release digestive enzymes
what is the purpose of the glucose-alanine cycle?
transport ammonium from muscles to liver
which ECG leads show the septal/medial view of the heart?
V1 and V2
which ECG leads show the anterior view of the heart?
V3 and V4
which ECG leads show the lateral view of the heart?
I
aVL
V5 and V6
which ECG leads show the inferior view of the heart?
II and III
aVF
what supplies the right ventricle and apex of the heart?
right marginal artery
what supplies the posterior 1/3 of the interventricular septum and AV node?
posterior inter-ventricular artery
what supplies the right atrium and right ventricle?
right coronary artery
what supplies the anterior 2/3 of the interventricular septum and the ventricles?
left anterior descending artery
what supplies the left ventricle?
left marginal artery
which types of cells generate spontaneous action potentials?
cardiomyocytes (SAN and AVN)
where is secretin secreted from and what is its function?
small intestine
- increases HCO3- secretion to neutralise chyme
which nerves carry afferent impulses from peripheral chemoreceptors?
- glossopharyngeal
- vagus
are triglycerides a component of bile?
no
what is found posterior to the hepatoduodenal ligament?
epiploic foramen of winslow
which ion is used as a co-transporter for the absorption of amino acids?
Na+
which ion is used as a co-transporter for the absorption of peptides?
H+
where is primarily affected by occlusions of the anterior cerebral artery?
contralateral lower body
where is primarily affected by occlusions of the middle cerebral artery?
contralateral upper body
what enzyme converts 25-hydroxyvitamin-D3 -> 1,25-diOH-vitaminD and where is it found?
1-alpha-hydroxylase
kidneys
what is the difference between the functions of cholecystokinin and leptin?
both stimulate satiety
CCK - immediately after meals
leptin - long-term weight regulation
what is the function of T-type Ca2+ channels?
initiate action potential in SAN and AVN
T=trigger
what is the function of L-type Ca2+ channels?
maintain action potentials in SAN and AVN
L=longer
what is the function of the Na+ uniporter in the heart?
depolarisation
what is the function of funny Na+ channels in the heart?
open when there is a negative voltage
- slow K+ outflow
- slow Na+ inflow
what is the function of ryanodine receptor 2 in the heart?
release Ca2+ from sarcoplasmic reticulum