Introduction to Anatomy & Physiology - Blood Vessels and Lymphatic System

Flashcards covering the anatomy and physiology of blood vessels and the lymphatic system as discussed in the lecture.

The three layers of blood vessel walls are the __________, __________, and __________.

tunica intima, tunica media, tunica externa

The innermost layer of a blood vessel is called __________.

tunica intima

The middle layer of a blood vessel, containing smooth muscle cells, is known as __________.

tunica media

The outermost layer of a blood vessel is referred to as __________.

tunica externa

Arteries carry blood __________ from the heart.

away

The smallest blood vessels, where exchange occurs, are called __________.

capillaries

The __________ system helps to return fluid and solutes from tissues to the bloodstream.

lymphatic

Blood pressure is defined as the pressure exerted by blood on the __________ of the blood vessels.

walls

Systolic pressure is generated during __________, while diastolic pressure is measured during __________.

ventricular systole, ventricular diastole

The __________ reflex helps regulate blood pressure through changes in cardiac activity and vascular tone.

baroreceptor

In the hepatic portal system, blood from the intestines is drained by the __________ to the liver.

hepatic portal vein

The Circle of Willis provides a __________ of blood flow to the brain, allowing for compensation in case of vessel obstruction.

circle

The spleen filters blood and contains two areas called __________ and __________.

red pulp, white pulp

The lymphatic capillaries allow only __________ movement of fluid into the capillary.

one-way

T cells are responsible for __________ antigens in the body.

directly destroying

The tonsils are part of the __________, providing immune functions in the respiratory and digestive systems.

mucosa-associated lymphoid tissue (MALT)