Home > Uncategorized > Human Anatomy: Circulatory System 3

Human Anatomy: Circulatory System 3

Overview

I believe this is the last of the circulatory system lectures.  This one will cost you 41 minutes.

http://www.youtube.com/watch?v=-aG5ddEaxFs

Details

The subclavian arteries run right under the clavicles, supplying the arms.

The internal thoracic supplies the pectorals, mammary glands and thymus.

Subclavian into the axillary (armpit) to the brachial (middle of arm) to the ulnar to the radial.  This is exactly like our freeway system.  Finally to the superficial palmar arch into the digital arteries.  There’s a loop.

From the Left ventricle to the right hand and back:

LV, ascending aorta, aortic arch, brachiocephalic, right subclavian, right axillary, brachial, radial/ulnar, right palmar arch………capillary bed of right hand……right palmar venous arch, brachial vein, axillary vein, subclavian vein, brachiocephalic vein, superior vena cava, right artrium.

Capillaries are surface streets, arteries are interstates.

“[Y]our adrenal gland… sits right above your kidneys, and it’s arranged in layers. On the outermost layers, you have mineral corticoids that control your sodium and your electrolyte levels. In the middle layer, you have your corticosteroids that control sugar and generate stress hormones. And in the innermost layer is where you generate growth hormones and the sex steroids, or that’s involved in the axis, in the feedback loop that generates that.

The old saying in medical school to memorize the three layers is “salt, sugar, sex” – the deeper you go, the better it gets. But you got to remember, your adrenal gland is an integrated organ. Those three layers are not perfectly divided. If through high-intensity exercise you’re trying to hammer that adrenal gland three times per week, but now you’re much stronger and your body hasn’t fully recovered from your Monday session and you come back and hit it again on Wednesday… you’re going to tap down into that deeper level.

Anti cuboidal space or the doral venous arch of the hand is the favorite place to put an IV. 

Right atrium to the small intestine

RA to RV, pulmonary artery trunk to right/left pulmonary artery to capillary beds of the right/left lungs to R/L pulmonary veins to the LA to LV to ascending aorta to aortic arch to thoractic aorta, abdominal aorta, superior mesenteric artery, capillary bed of small intestine….superior messenteric vein, hepatic portal vein, capillary bed of liver…..hepatic bein, inferior vena cava, RA  or azgos vein to the superior vena cava to RA.

Superficial veins return blood from the skin and subcutaneous structures by anastomosing or interconnecting with deep veins.  BP is pretty low here.

Deep veins accompany the principal arteries and have the same name.  Deep veins run in the opposite direction as the arteries.

Review

Tissue: muscle, nerve, connective, epithelial

Epithelial: simple/stratified/pseudo, cuboidal/columnar/squamous

Nucleophile: electrons available, negatively charged, less electronegative

Leaving Group: electron withdrawing, stabilizing, polarizing

Hydrogen Bonding: N 3, O 3.5, F 4, Cl 3

Polar Protic: OH or NH, SN1 reaction,

Intermolecular forces: ionic, hydrogen bonding, dipole dipole, van der Waals

Acetone (CH3)C=O(CH3) 24.2

Ammonia NH3 32.5

Methanol CH3OH 15.2

Ethanol CH3CH2OH 15.9

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