LAB 09 Blood Tracing Spring \'19 PDF

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LAB 09

BLOOD TRACING Corresponding text material: Amerman pp. 696 – 718

OBJECTIVES:  To trace the flow of a drop blood from one part of the body to another, naming the blood vessels and heart structures it through which it passes. Use your previous lab packets and your text as references. Here are some hints to help you:     

Arteries bifurcate, but veins merge together. If you start in an artery, you have to go through the arterial system and then through a capillary bed before you can go through the venous system. You can’t go backward through the arterial system. If you start in a vein, you have to go through the venous system and through the heart before you can get back to the arterial system. If you start in an artery and end in an artery, you will likely have to go through the arterial circuit, through a capillary bed, through the venous circuit, back to the heart and lungs, and then reenter the arterial circuit. Sometimes there is more than one right answer, because you can take multiple paths.



THE HEPATIC PORTAL SYSTEM: o Remember that the hepatic portal system is a system of veins carrying deoxygenated but nutrient-rich blood from certain abdominal organs first to the liver before returning to the heart and back to general circulation. o The kidneys, testes, and ovaries do not send their blood to the hepatic portal system. o The liver has a dual blood supply – oxygenated blood entering via the hepatic artery, deoxygenated but nutrient-rich blood entering via the portal vein. All blood exits the back of the liver via the hepatic veins.



IN THE ARMS: o Use palmar arch arteries for all tracings to the thumb and little finger. o Veins with the same names as the arteries are deep. o Cephalic, basilic, median cubital, and median antebrachial veins are superficial. o For our blood tracings, use palmar arch veins for deep tracings, not superficial tracings.



IN THE LEGS: o For our blood tracings, the posterior tibial artery and the peroneal artery lead into the plantar arch artery, but the anterior tibial leads into the dorsal pedis artery, which then leads into the plantar arch artery. o Use plantar arch arteries for all tracings to the toes. o For our blood tracings, use plantar arch veins only for deep tracings, not superficial tracings. o In the legs, veins with the same names as the arteries are deep.

BLOOD TRACING PROBLEMS Trace a drop of blood through the following circuits. Note that you are given the starting point and the end point. THE ANSWERS TO EACH PROBLEM ARE GIVEN IN THE REFERENCE POWERPOINT FOR THIS LAB. Try one, check your answers, and then try the next one, continuing until you have done all of the problems 1. Trace a drop of blood from the right thumb (superficially) to the right little finger. For this tracing, include the tracing through the heart.

CAPILLARIES OF RT. THUMB

N. _________________________________

A. _________________________________

O._________________________________

B. _________________________________

P. _________________________________

C. _________________________________

Q. _________________________________

D. _________________________________

ASCENDING AORTA

E. _________________________________

R. _________________________________

F. _________________________________

S. _________________________________

G. _________________________________

T. _________________________________

RT. ATRIUM

U. _________________________________

H. _________________________________

V. _________________________________

I. _________________________________

W. _________________________________

J. _________________________________

X. _________________________________

K. _________________________________

Y. _________________________________

L. _________________________________

Z. _________________________________

LUNGS (02 AND CO2 EXCHANGE) M. _________________________________

CAPILLARIES OF RT. LITTLE FINGER

2. Trace a drop of blood from the big toe (using deep vessels) to the small intestine. For this blood tracing you need not do the tracing through the heart.

CAPILLARIES OF BIG TOE

H. _________________________________

A. _________________________________

HEART – LUNGS – HEART

B. _________________________________

I. _________________________________

C. _________________________________

J. _________________________________

ANTERIOR TIBIAL VEIN

K. _________________________________

D. _________________________________

L. _________________________________

E. _________________________________

M. _________________________________

F. _________________________________

N. _________________________________

G. _________________________________

CAPILLARIES OF SMALL INTESTINE

3. Trace a drop of blood from the little toe (superficially) to the right side of the front of the brain and then back to the heart. For this tracing you need not do the tracing through the heart.

CAPILLARIES OF LITTLE TOE

L. _________________________________

A. _________________________________

M. _________________________________

B. _________________________________

N. _________________________________

C. _________________________________

O. _________________________________

D. _________________________________

P. _________________________________

E. _________________________________

INFERIOR SAGITTAL SINUS

F. _________________________________

Q. _________________________________

G. _________________________________

R. _________________________________

H. _________________________________

S. _________________________________

HEART-LUNGS-HEART

T. _________________________________

I. _________________________________

U. _________________________________

J. _________________________________

V. _________________________________

K. _________________________________

HEART

RT. COMMON CAROTID ARTERY

4. Trace a drop of blood from the back of the scalp to the anterior interventricular septum myocardium and then back to the right atrium of the heart. You need not trace through the heart.

CAPILLARIES IN BACK OF THE SCALP

H. _________________________________

A. _________________________________

I. _________________________________

B. _________________________________

J. _________________________________

C. _________________________________

CAPILLARIES OF ANT. INTER-

D. _________________________________

VENTRICULAR SEPTUM MYOCARDIUM

E. _________________________________

K. _________________________________

F. _________________________________

L. _________________________________

HEART-LUNGS-HEART

M. _________________________________

G. _________________________________

RIGHT ATRIUM OF HEART

5. Trace a drop of blood from the kidney to the big toe. You need not trace through the heart.

CAPILLARIES OF KIDNEY

I. _________________________________

A. _________________________________

J. _________________________________

B. _________________________________

K. _________________________________

C. _________________________________

ANTERIOR TIBIAL ARTERY

HEART-LUNGS-HEART

L. _________________________________

D. _________________________________

M. _________________________________

E. _________________________________

N. _________________________________

F. _________________________________

O. _________________________________

G. _________________________________

CAPILLARIES OF THE BIG TOE

H. _________________________________

6. Trace a drop of blood from the large intestine to the spleen. You need not trace through the heart.

CAPILLARIES OF LARGE INTESTINE

G. _________________________________

A. _________________________________

H. _________________________________

B. _________________________________

I. _________________________________

C. _________________________________

J. _________________________________

D. _________________________________

K. _________________________________

LIVER

L. _________________________________

E. _________________________________

M. _________________________________

F. _________________________________

CAPILLARIES OF THE SPLEEN

HEART-LUNGS-HEART

7. Trace a drop of blood from the heart to the back of the brain and then to the heart. You need not trace through the heart.

ASCENDING AORTA

G. _________________________________

A. _________________________________

SUPERIOR SAGITTAL SINUS

B. _________________________________

H. _________________________________

LEFT VERTEBRAL ARTERY

I. _________________________________

C. _________________________________

J. _________________________________

D. _________________________________

K. _________________________________

E. _________________________________

L. _________________________________

F. _________________________________

HEART

8. Trace a drop of blood from the little finger (using deep vessels) to the little toe. You need not trace through the heart. CAPILLARIES OF LITTLE FINGER

L. _________________________________

A. _________________________________

M. _________________________________

B. _________________________________

N. _________________________________

C. _________________________________

O. _________________________________

D. _________________________________

P. _________________________________

E. _________________________________

Q. _________________________________

F. _________________________________

R. _________________________________

G. _________________________________

PERONEAL ARTERY

H. _________________________________

S. _________________________________

I. _________________________________

T. _________________________________

HEART-LUNGS-HEART

U. _________________________________

J. _________________________________

CAPILLARIES OF THE LITTLE TOE

K. _________________________________ 9. Trace a drop of blood from the right big toe (superficially) to the left thumb, mentioning the parts of the heart as you pass through it. CAPILLARIES OF RT BIG TOE

L. _________________________________

A. _________________________________

M. _________________________________

B. _________________________________

N. _________________________________

C. _________________________________

O. _________________________________

D. _________________________________

P. _________________________________

E. _________________________________

Q. _________________________________

COMMON ILIAC VEIN

AORTIC ARCH

F. _________________________________

R. _________________________________

RIGHT ATRIUM

R. _________________________________

G. _________________________________

S. _________________________________

H. _________________________________

T. _________________________________

I. _________________________________

U. _________________________________

J. _________________________________

W. _________________________________

K. _________________________________

X. _________________________________

LUNGS

CAPILLARIES OF LEFT THUMB...