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Stella Kalyana

Anatomy Weeks 6-12

Question/Term/Fill in Answer/Definition/Fill in
SA Node The pacemaker of the heart that starts each heartbeat.
Which division of the autonomic nervous system sends fibers to the heart? Both sympathetic and parasympathetic.
The outermost layer of a large blood vessel is called the ______. Tunica externa.
Pericardium A loose-fitting, inextensible sac that surrounds and protects the heart.
What vessels supply the myocardium with blood? Coronary arteries.
Endocardium The membrane lining the heart chambers and blood vessels.
Atria are called ______ chambers because they receive blood returning to the heart. Receiving chambers.
What structure initiates the normal cardiac impulse? SA node.
Thoracic duct The large lymphatic vessel that drains three-quarters of the body.
Where does lymph from the right arm enter the bloodstream? Right subclavian vein.
Inguinal lymph nodes Lymph nodes that filter lymph from the lower limbs.
The smallest lymphatic vessels that pick up lymph in tissues are called ______. Lymphatic capillaries.
What is the first line of defense in the immune system? The skin.
Immunoglobulins Antibody proteins that help defend the body.
During their residence in the thymus, pre-T cells develop into what? T cells that can respond rapidly (cytotoxic T cells).
The spleen is located in the ______ region of the abdominal cavity. Left hypochondriac region.
Epiglottis Leaf-shaped cartilage that covers the larynx opening during swallowing.
What is the common passageway for food and air? The pharynx.
The trachea divides into two ______ bronchi at its lower end. Primary bronchi.
What fluid coats the inside surface of each alveolus? Surfactant.
Created by: Skalyana
 

 



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