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Cardiovascular anatomy > Heart 1+2 > Flashcards

Flashcards in Heart 1+2 Deck (8)
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1

Layers of vessels

fibrocollagenous tissue, Tunica media (SM), tunica intima (fibrocollagenous tissue+internal elastic lamina), endothelium

2

RA features

right auricle, musculi pectinati (comb like fibres on inner surface of heart), fossa ovaliss, sinus venarum

3

ventricle features

chordae tendineae, papillary muscles, infundibulum (exists in both but less pronounced in LV)

4

LA features

inner surface is smooth, left auricle

5

What are ventricular septal defects and mitral valve prolapse

Ventricular septal defect-when intraventricular septum is perforated
mitral valve prolapse-when the valves don't shut at equal levels causing blood to leak

6

what is different about fetal circulation

Presence of foramen ovale (allows blood flow from RA to LA) and ductus arteriosus (connecting pulmonary trunk directly to aorta)

7

Functions of nerves near heart

Phrenic-originates in the neck (C3-C5) and passes down between the lung and heart to reach the diaphragm. It is important for breathing
Vagus-(behind heart) control several muscles of the throat and of the voicebox. It plays a major role in regulating the heart rate and keeping the gastrointestinal tract in working order. The vagus nerves also carry sensory information from the internal organs back to the brain

8

Label the coronary arteries

ref. notes