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Questions and Answers
What is the primary function of the Tunica Media in blood vessels?
What is the primary function of the Tunica Media in blood vessels?
- Provides stretch to the vessel
- Supplies nutrients to the vessel
- Facilitates vasoconstriction (correct)
- Acts as a barrier against pathogens
Which artery supplies blood to the intestines?
Which artery supplies blood to the intestines?
- Subclavian Artery
- Celiac Artery
- Common Iliac Artery
- Superior Mesenteric Artery (correct)
Which structure is supplied by the Celiac Trunk?
Which structure is supplied by the Celiac Trunk?
- Brain
- Upper Limb
- Liver (correct)
- Pelvis
What type of connective tissue is found in the Tunica Externa?
What type of connective tissue is found in the Tunica Externa?
Which artery is responsible for supplying blood to the upper limb?
Which artery is responsible for supplying blood to the upper limb?
Flashcards
Tunica Interna
Tunica Interna
The innermost layer of blood vessels; provides stretch and elasticity.
Tunica Media
Tunica Media
The middle layer of blood vessels; responsible for vasoconstriction and dilation.
Celiac Trunk
Celiac Trunk
An unpaired branch of the abdominal aorta that supplies organs like the liver and stomach.
Superior Mesenteric Artery
Superior Mesenteric Artery
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Common Carotid Artery
Common Carotid Artery
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Study Notes
Blood Vessel Layers
- The tunica interna is the innermost layer, thin and provides elasticity.
- The tunica media is the middle layer, responsible for vasoconstriction (narrowing of the blood vessel).
- The tunica externa is the outermost layer, providing structural support.
Arteries Supplying Specific Structures
- Upper Limb: Subclavian Artery
- Head & Brain: Common Carotid Artery
- Lower Limb/Pelvis: Common Iliac Artery
- Intestines: Superior Mesenteric Artery
- Spine: Vertebral Artery
- Anterior/Lateral Arm: Cephalic Vein (Note: veins are not the primary vessels supplying blood. Veins primarily drain blood from regions.)
- Liver, Spleen, Stomach: Celiac Artery
Abdominal Aorta Branches
- The celiac trunk supplies the liver, gallbladder, stomach, and spleen.
- The superior mesenteric artery supplies the small intestine and portions of the large intestine.
- The inferior mesenteric artery supplies portions of the large intestine.
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