Exam 2 Cardiovascular Right Side

Where does the right atrium receive blood from?

From cranial and caudal vena cava, and the coronary sinus

The right atrium divides into…

Right auricle and Right atrial body

What do pectinate muscles do to the right atrium?

Cause the atrium to have an uneven, trabeculated surface

Found in the right atrium, fossa oivalis are remnants of…

Foramen ovale

Where does rhe right atrium receive blood from?

Coronary sinus, Superior vena cava, and Inferior vena cava

What is the tricuspid valve?

A one-way valve that prevents blood from leaking backward into the right atrium

The tricuspid valve is OPEN during…

Diastole / Ventricular relaxation

The tricuspid valve is CLOSED during…

Systole / Ventricular contraction

The valve leaflets of the right atrioventricle valve attach to…

Valve base

Free ends of the right atrioventricular valve are attached to muscle by…

Chordae Tendinae

What are Chlordae Tendinae?

Strong fibrous strands

What does the right ventricle do?

Pumps deoxygenated blood into the low pressure pulmonar circulation

Does the right ventricle have thinner or thicker walls than the left ventricle?

Thinner

Why is the right ventricle wall thinner?

Because it pushes against low pulmonary resistance

Where does blood exit to?

Exits to pulmonary artery via Pulmonioc valve

Semilunar valve def

Prevents backflow of blood into right ventricle as it is filling with flood from right atria

What type of blood do arteries carry?

Deoxygenated blood

The Ligamentum Arteriosum is a remnant of…

Ductus arteriosis

What is the ligamentum arteriosum>

Fibrous connection between the pulmonary artery to descending artery

In fetuses, how do the aorta and pulmonary artery conent?

Via ductus arteriosis

Patent Ductus Arteriosis Def

Most common congenital defect in dogs

How does patent ductus arteriosis happen?

Blood shunted, causing left sided heart failure