Ch16 Blood Vessels - Student Notes PDF

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Human Anatomy...

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A&P Lab Exercise 32: Blood Vessels – Instructors Guide

Goals for this lab period: - Review the structural and functional differences between arteries, capillaries, and veins - Identify the location of blood vessels on models and diagrams of the human circulatory system - Trace the flow of blood through the circulatory system - Distinguish between the pulmonary and systemic circulations - Review whether oxygenated or deoxygenated blood in found within various blood vessels - Be able to distinguish among arteries, capillaries, and veins on microscope slides Differences between Arteries and Veins: - Arteries lead blood away from the heart, while veins lead blood towards the heart - Arteries have thicker walls than veins b/c of greater pressure - Veins contain one-way valves to prevent backflow of blood - Contraction of surrounding skeletal muscle helps return venous blood to the heart Upper Extremity Systemic Circulation: Arteries (Figure 32.2) Ascending aorta –

Aortic arch –

Brachiocephalic trunk –

R and L common carotid –

R and L external carotid –

R and L internal carotid –

R and L subclavian –

Axillary – Brachial – Radial – Ulnar –

Lower Extremity Systemic Circulation: Arteries (Figure 32.2) Descending aorta –

Celiac trunk – Renal – Common iliac – Internal iliac – External iliac – Femoral –

Lower Extremity Systemic Circulation: Veins (Figure 32.7) Remind students that the following veins all drain into the heart: Great saphenous –

Femoral –

External iliac –

Internal iliac –

Common iliac –

Renal -

Hepatic –

Inferior vena cava -

Upper Extremity Systemic Circulation: Veins (Figure 32.7) Ulnar – Radial Brachial –

Cephalic – Axillary R and L subclavian – External jugular –

Internal jugular – R and L brachiocephalic – Superior vena cava –

Pulmonary Circulation Pulmonary trunk – Pulmonary arteries –

Pulmonary veins – How many direct branches come off of the aortic arch? What are the names of these blood vessels? Gas exchange occurs in which type of blood vessel? What type of epithelium is found within these blood vessels?

Microscope Slides (Figure 32.1) - Smooth muscle - Arteries - Capillaries - Veins...