Need help on 1, and 3 pleaseeee!! e the main structural difference between elast
ID: 3516194 • Letter: N
Question
Need help on 1, and 3 pleaseeee!! e the main structural difference between elastic and muscular arteries. What is the functional significance of this difference 2. Describe and compare the two main circulatory pathways: the pulmonary circulation and the systemic circulation. 3. Compare and contrast the structure and function of the three main types of capillaries by completing the following table. Capillary Type Structure of Capillary Wall Functional Significance of Capillary Structure Continuous b. Fenestrated d. Sinusoid EXERCISE 22 Anatomy of Blood VesselsExplanation / Answer
Question 1
Answer
Property
Elastic artery
Muscular artery
It is the conducting artery
These are distribution artery
size
It is large in size. Approximately from 1 -2.5 cm
These are smaller compared to elastic arteries approximately 1 to 10 mm.
Changes
These can stretch and recoil according to pressure changes
These can relax and constrict by changing diameter.
Function
These arteries in the conduction blood to aorta branches
These can distribute blood to distal elastic arteries
Elastin
They have high amount
It has a lesser amount
Smooth muscles
Less or few amounts of smooth muscle
High amount of smooth muscle
Tunica media
Broader tunica media
Narrow tunica media
The functional significance is a supply of blood
elastic arteries involved in the conduction of blood to large arteries whereas muscular arteries are distribution arteries to distant elastic arteries.
Question 2
Property
Pulmonary circulation
Systemic circulation
Blood
It carries deoxygenated blood from heart to the lung through the pulmonary artery. Pulmonary veins carry oxygenated blood
It carries oxygenated blood from the heart to the body parts by aorta. Impure blood is carried by superior and inferior vena cava
Proposed
Al nafis
William Harvey
Transport blood to
lungs
Heart
Blood vessels
Pulmonary vein and pulmonary artery
Superior vena cava and inferior vena cava
Property
Elastic artery
Muscular artery
It is the conducting artery
These are distribution artery
size
It is large in size. Approximately from 1 -2.5 cm
These are smaller compared to elastic arteries approximately 1 to 10 mm.
Changes
These can stretch and recoil according to pressure changes
These can relax and constrict by changing diameter.
Function
These arteries in the conduction blood to aorta branches
These can distribute blood to distal elastic arteries
Elastin
They have high amount
It has a lesser amount
Smooth muscles
Less or few amounts of smooth muscle
High amount of smooth muscle
Tunica media
Broader tunica media
Narrow tunica media
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