Veins

Question 0

Why are muscles not essential to the function of viens but they are in arteries?

Answer 0

Veins are Low Pressure vessels

Arteries are High Pressure vessels

Question 1

What is the general histological difference between veins and arteries?

Answer 1

Arteries are more developed the veins.

Question 2

What is a neurovascular bundle?

Answer 2

The pairing of a Neuron, Artery, and Vein that travel together.

Question 3

What are veins composed of?

Answer 3

Endothelial Cells
Tunica media
Tunica adventitia

Question 4

What separates the tunica media and adventitia in a vein?

Answer 4

Nothing, elastic lamina only exists between layers of the artery.

Question 5

Where are veins found?

Answer 5

Neurovascular bundles

Question 6

What causes you to pass out when you lock your knees?

Answer 6

The collection of blood in the veins.

Question 7

What percentage of circulating blood volume do capacitance vessels hold?

Answer 7

70%

Question 8

What does it mean to say veins are more “variable” than arteries?

Answer 8

They slide and move around.

Question 9

Why is infection a concern in venous circulation?

Answer 9

Pooling of blood can increase bacterial growth infecting throughout the venous circulation.

Question 10

Where do valves arise from?

Answer 10

Tunica Intima

Question 11

True or False valves exist in the venous areas of the head and neck?

Answer 11

False, valves do NOT exist in head and neck areas.

Question 12

What is the function of the External Jugular Veins?

Answer 12

Drains a small portion of Extracranial tissues.

Question 13

What is the function of the Internal Jugular Vein?

Answer 13

Drains the brain and most of the head and neck tissues.

Question 14

How is blood collected in the venous collection system?

Answer 14

Both Jugular Veins merge with the subclavian vein to create a brachiocephalic vein and ultimately drain into the superior vena cava to dump into the right atrium.

Question 15

True or False the facial vein is associated with the internal jugular vein?

Answer 15

True

Question 16

Where does the facial vein collect from?

Answer 16

“Major Player”

(all kinds of things)

Question 17

True of False the retromandibular vein is associated with the external jugular vein.

Answer 17

true.

Question 18

What is the retromandibular vein created by?

Answer 18

Superficial Temporal + Maxillary Veins

Question 19

Where does the retromandibular vein collect from?

Answer 19

posterior auricular vein

Question 20

Where are the Venous Sinuses located?

Answer 20

In the Brain.

Question 21

Where do the Venous Sinuses channel blood?

Answer 21

From the cerebral veins to the internal jugular.

Question 22

What is the name of the condition that is associated with the Cavernous Sinus?

Answer 22

Cavernous Sinus Thrombosis

Question 23

What occurs in the vein in Cavernous Sinus Thrombosis?

Answer 23

Bacteria gets lodged in the slow moving vein causing and infected clot.

Question 24

Where (most likely) does the bacteria come from?

Answer 24

The veins that anastomose with the cavernous sinus drain the teeth.

Question 25

What symptoms are associated with Cavernous Sinus Thrombosis?

Answer 25

Fever
Drowsiness
Diplopia

Question 26

What is diplopia?

Answer 26

Double Vision

Question 27

What nerve stops functioning causing diplopia?

Answer 27

Cranial Nerve 6

Question 28

How does diplopia occur?

Answer 28

Swollen veins puts pressure on nerves causing the nerve to stop working.