TTU ZOOL 2403 Boros 88 Final Exam
Valves and cardiac muscle - ✔ ✔ The Fibrous Skeleton is an attachment site
for ____ and ____ ____ cells.
Conducting System Cells - ✔ ✔ -A system of specialized cardiac muscle cells.
-Generate action potentials at regular intervals
-Depolarize rapidly and spontaneously
Contractile Cells - ✔ ✔ The ____ cause the heart muscle to contract,
pumping blood out from the heart.
Conducting System, Contractile - ✔ ✔ 2 types of cardiac muscle cells: ____
____ cells & ____ cells
Components of the Conducting System - ✔ ✔ -Sinoatrial (SA) Node
-Atrioventricular (AV) Node
Pace Maker Cells - ✔ ✔ Cells in Sinoatrial (SA) Node are called the ____ ____
____.
Action Potentials - ✔ ✔ Pace maker cells initiate ____ ____.
, Atria, Ventricles - ✔ ✔ Blood flows from the ____ to the ____ in the heart
tunica intima, tunica media, tunica externa - ✔ ✔ The 3 layers of blood
vessel walls from inside out are:
Sympathetic - ✔ ✔ Only ____ nerves innervate blood vessel smooth muscle.
30-35 - ✔ ✔ The heart, arteries, and capillaries in the pulmonary and
systemic circulations normally contain ___-___% of the blood volume
60-75 - ✔ ✔ The venous system contains __-__% of blood volume.
contraction of the surrounding skeletal muscles - ✔ ✔ How does the venous
blood overcome the force of gravity and return to the heart?
Venous Vavles - ✔ ✔ Are only found in limb veins.
Platelets - ✔ ✔ Are cell fragments from megakaryocytes, involved in blood
clotting, and release clotting chemicals.
Erythrocytes - ✔ ✔ Most numerous cells in the blood and make up 99.9% of
blood's formed elements. Very flexible, no organelles.
Hemogoblin - ✔ ✔ Erythrocytes contain ____ to bind and carry O2.
Valves and cardiac muscle - ✔ ✔ The Fibrous Skeleton is an attachment site
for ____ and ____ ____ cells.
Conducting System Cells - ✔ ✔ -A system of specialized cardiac muscle cells.
-Generate action potentials at regular intervals
-Depolarize rapidly and spontaneously
Contractile Cells - ✔ ✔ The ____ cause the heart muscle to contract,
pumping blood out from the heart.
Conducting System, Contractile - ✔ ✔ 2 types of cardiac muscle cells: ____
____ cells & ____ cells
Components of the Conducting System - ✔ ✔ -Sinoatrial (SA) Node
-Atrioventricular (AV) Node
Pace Maker Cells - ✔ ✔ Cells in Sinoatrial (SA) Node are called the ____ ____
____.
Action Potentials - ✔ ✔ Pace maker cells initiate ____ ____.
, Atria, Ventricles - ✔ ✔ Blood flows from the ____ to the ____ in the heart
tunica intima, tunica media, tunica externa - ✔ ✔ The 3 layers of blood
vessel walls from inside out are:
Sympathetic - ✔ ✔ Only ____ nerves innervate blood vessel smooth muscle.
30-35 - ✔ ✔ The heart, arteries, and capillaries in the pulmonary and
systemic circulations normally contain ___-___% of the blood volume
60-75 - ✔ ✔ The venous system contains __-__% of blood volume.
contraction of the surrounding skeletal muscles - ✔ ✔ How does the venous
blood overcome the force of gravity and return to the heart?
Venous Vavles - ✔ ✔ Are only found in limb veins.
Platelets - ✔ ✔ Are cell fragments from megakaryocytes, involved in blood
clotting, and release clotting chemicals.
Erythrocytes - ✔ ✔ Most numerous cells in the blood and make up 99.9% of
blood's formed elements. Very flexible, no organelles.
Hemogoblin - ✔ ✔ Erythrocytes contain ____ to bind and carry O2.
