Transcript Lab 6: Circulatory System Part 4 (Veins)

Lab 6: Circulatory System Part 4
(Veins)
Dr. Kim Wilson
Part A: Major Veins of the Human
INSTRUCTIONS:
1.
Use the section below titled, "Major Veins of the Human Body",
and
locate each of the indicated veins on pictures in your textbook.
As many as possible of these veins should also be located on the
torsos and other indicated references (ADAM).
2.
Answer related questions on the Questions Sheet.
Major Veins of the Human Body
1.
Superior Vena Cava ---> Brachiocephalic Veins (L&R)
2.
Brachiocephalic Veins (L&R) --->
a) Internal Jugular Veins (L&R)
b) External Jugular Veins (L&R)
c) Subclavian Veins (L&R)
3.
Subclavian Veins (L&R) --->
a) Axillary Veins (L&R)
b) Cephalic Veins (L&R)
4.
Axillary Veins (L&R) --->
a) Brachial Veins (L&R)
b) Basilic Veins (L&R)
5.
Inferior Vena Cava --->
a) Hepatic Veins (L&R)
b) Renal Veins (L&R)
c) Testicular/Ovarian Veins (Gonadal)(R)
(Left Usually Drains into L Renal Vein)
d) Common Iliac Veins (L&R)
6.
Common Iliac Veins (L&R) --->
a) External Iliac Veins (L&R)
b) Internal Iliac Veins (L&R)
7.
External Iliac Veins (L&R) --->
a) Femoral Veins (L&R)
b) Great Saphenous Veins (L&R)
8.
Hepatic Portal Vein
Major Veins of the Human
 Lab manual reference – Exercise 32, pg. 476
 Fig. 32.8 Veins of the right lower limb.
Major Veins of the Human Body
Source: http://connect.in.com/how-many-bones-in-the-human-body/photos-1-1-1-39a101c39cf4f6b052b6125b80bea001.html
Veins
 Tend to branch from the venae cavae
 Veins draining the head and upper extremeties empty into the superior vena
cava
 Those draining the lower blood empty into the inferior vena cava
 Formed when venules converge
 Venules are formed when capillary beds unite
 Allow fluids and WBCs to pass from the bloodstream to tissues
 Veins have much lower blood pressure and thinner walls than arteries
 To return blood to the heart, veins have special adaptations
 Large-diameter lumens, which offer little resistance to flow
 Valves (resembling semilunar heart valves), which prevent backflow of blood
 Venous sinuses – specialized, flattened veins with extremely thin walls (e.g.,
coronary sinus of the heart and dural sinuses of the brain)
Veins Draining into the Inferior Vena
Cava
 Common iliac veins
 Drain venous blood from the legs and pelvis
 Internal iliac vein
 Drains the pelvis
 External iliac vein
 Receives venous blood from lower limb
 Anterior and posterior tibial veins
 Serve the calf and foot
 Dorsalis pedis vein extends from posterior tibial vein
 Posterior tibial vein is formed by the medial and lateral plantar veins
 Receives the fibular vein in calf and joins with the anterior tibial vein at knee
to make the popliteal vein
 Becomes the femoral vein
Veins Draining into the Inferior Vena
Cava
 Great saphenous vein
 Superficial vein
 Longest vein in the body
 Begins with small saphenous vein from the dorsal venous arch
 Extends up the medial side of the leg, knee, and thigh to the femoral vein
 Veins of the abdomen
 Lumbar veins
 Right and left gonadal (ovarian or testicular) veins
 Renal veins
 Drain the kidney
 Right and left suprarenal vein
 Drains into the superior vena cava
 Right and left hepatic veins
 Drain the liver
Veins Draining into the Superior Vena
Cava
 Veins draining into the superior vena cava are named from the
superior vena cava distally, BUT remember that the flow of blood is in
the opposite direction
 Veins in the head and neck
 Right and left brachiocephalic veins
 Drain the head, neck, and upper extremities
 Branches include the internal jugular, vertebral, and subclavian veins
 Jugular veins (internal and external)
 Drain sinuses of the brain
 Receive blood from the head and neck via superficial temporal and facial
veins
 Vertebral veins
 Drain posterior aspect of head including cervical vertebrae and spinal cord
 Subclavian veins
 Receives venous blood from upper extremity
Veins Draining into the Superior Vena
Cava
 Veins of the Upper Limb and Thorax
 Subclavian vein → axillary vein → brachial vein
 Brachial vein
 Formed from union of radial and ulnar veins of forearm
 Cephalic vein
 Drains the arm
 Basilic vein
 Located in medial aspect of arm and entering brachial vein and median cubital
vein
 Median antebrachial vein
 Between radial and ulnar veins
 Azygos vein
 Drains right side of thorax
 Entire system drains intercoastal muscles of thorax and provides another means
to drain abdominal wall
 Left ascending lumbar vein
 Accessory hemiazygos vein
Heart (Anterior View)
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Heart (Anterosuperior View)
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Blood Vessels of the Abdomen and
Pelvis
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Blood Vessels of the Thorax
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Blood Vessels of the Pelvis
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Vessels of the Lower Body
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Thorax
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Part B: Major Veins of the Cat
INSTRUCTIONS:
1.
Use the section below titled, "Major Veins of the Cat", and
locate each of the indicated veins on pictures in your lab
manual.
2.
Following this, locate each of these veins on your cat using your
lab manual (Color Photo Gallery) and the Rust lab manual for
reference.
3.
Answer related questions on the Questions Sheet.
Major Veins of the Cat
1.
Superior Vena Cava (Precava; Cranial Vena Cava) --->
Brachiocephalic Veins (L&R)
2.
Brachiocephalic Veins (L&R) --->
a) Internal Jugular Veins (L&R)
b) External Jugular Veins (L&R)
c) Subclavian Veins (L&R)
3.
Subclavian Veins (L&R) ---> Axillary Veins (L&R) --->
Brachial Veins (L&R)
4.
Inferior Vena Cava (Postcava; Caudal Vena Cava) --->
a) Hepatic Veins (L&R)
b) Renal Veins (L&R)
c) Testicular/Ovarian Veins (Gonadal)(R)
(Left Usually Drains into L Renal Vein)
d) Common Iliac Veins (L&R)
5.
Common Iliac Veins (L&R) --->
a) External Iliac Veins (L&R)
b) Internal Iliac Veins (L&R)
6.
External Iliac Veins (L&R) ---> Femoral Veins (L&R)
7.
Hepatic Portal Vein
Veins of the Thorax
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Hepatic Portal System
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Veins of the Pelvis and Legs
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Major Blood Vessels of the Lower
Abdomen
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