Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
ANATOMY EXAM 3 LECTURE 25: Cardiovascular II
|
ANATOMY EXAM 3 LECTURE 25: Cardiovascular II
|
|
|
Structures involved in the prenatal circulation:
|
1. ductus arteriosus
2. foramen ovale 3. ductus venosus 4. umbilical vein 5. umbilical artery |
|
|
What does the ductus arteriosum become?
|
Ligamentum arteriosum
|
|
|
What does the foramen ovale become?
|
Fossa ovale (closed)
|
|
|
What does the ductus venosum become?
|
Ligamentum venosum
|
|
|
The umbilical vein becomes what?
|
Ligament teres (round) of the liver.
|
|
|
What's the composition of the basal lamina?
|
CT with high percentage of Type IV collagen.
|
|
|
What are the functions of the basal lamina?
|
1. attachment of endothelium to CT.
2. filtration 3. tissue scaffolding-- regeneration. |
|
|
What are three types of capillaries?
|
1. continuous capillaries
2. fenestrated " 3. sinusoidal (leaky) " |
|
|
Continuous capillaries
|
1. no pores
2. most common type |
|
|
What's common about the fenestrated and sinusoidal capillaries?
|
Both have pores
|
|
|
Endothelium
|
The thin layer of cells that lines the interior surface of blood vessels.
|
|
|
Structure (histology) of arteries
|
From most inner to most outer:
1. endothelium 2. basal lamina 3. internal elastic lamina (1-->3: tunica interna) 4. smooth muscle 5. external elastic lamina (4-->5: tunica media) 6. adventitia (6: adventitia) |
|
|
Superior vena cava divides into:
|
Right brachiocephalic vein
Left brachiocephalic vein |
|
|
Right brachiocephalic divides into:
|
Subclavian vein
Internal jugular vein |
|
|
Left brachiocephalic vein
|
Only one branch off of it--> internal jugular vein.
|
|
|
Components of the aorta
|
1. ascending
2. arch 3. descending |
|
|
Ascending aorta
|
2 coronary arteries
Middle mediastinum |
|
|
Aortic arch
|
3 branches
Superior mediastinum |
|
|
Descending aorta
|
Posterior intercostal
Posterior mediastinum |
|
|
Subclavian artery
|
1. internal thoracic (descends)
2. thyrocervical trunk a. inferior thyroid 3. vertebral 4. common carotid |
|
|
Common carotid
|
1. internal carotid (lateral)
2. external carotid (medial) |
|
|
Branches of the external carotid:
|
1. superior thyroid
2. lingual 3. facial 4. occipital 5. maxillary 6. becomes superficial temporal |
|
|
Circle of Willis
|
Draw it out
Slide 21 |
|
|
Dural sinuses
|
Print out Slide 23, 25
|
