The obex (from the Latin for barrier ) is the point in the human brain at which the fourth ventricle narrows to become the central canal of the spinal cord.

The left ventricle is involved in 50 67 of individuals.

The mitral valve opens when the pressure in the left atrium is greater than the pressure in the left ventricle.

In cardiovascular physiology, stroke volume (SV) is the volume of blood pumped from the left ventricle of the heart per beat.

This causes some of the blood to travel in reverse , from the left ventricle to the left atrium, instead of forward to the aorta and the rest of the body.

(Fourth Committee)

Fourth session

(Fourth Committee)

Fourth session

Fourth safeguard

France s Fourth Moment

Fourth, military transformation.

Thirty fourth session

Forty fourth session

Forty fourth session

Fourth preambular paragraph

Thirty fourth meeting

(b) Thirty fourth session

Forty fourth (resumed) session

Paragraph 6, fourth line

When he opened the fourth seal, I heard the fourth living creature saying, Come and see!

Fourth periodic report of Mauritius

Fourth, paragraph 13 states that

Forty fourth session, March 2001.

D. 1970 the Fourth Congress

Fourth Global Environment Outlook report

Fourth periodic report of Yemen

Report on the fourth session

The fourth policy imperative is rebuilding.

The fourth problem is collective anchoring.

Okay, I'll help you. Fourth one.

He was the fourth Shia Imam.

Nethanel the fourth, Raddai the fifth,

Mishmannah the fourth, Jeremiah the fifth,

Nethaneel the fourth, Raddai the fifth,

The fourth E relates to education.

My fourth point concerns the review.

Fourth periodic report of States parties

Every fourth citizen of Belarus perished.

Fourth periodic report of Iceland (continued)

Fourth Committee special political and decolonization

Fourth periodic report of States parties

Fourth F4 instalment, claim No. 5000455.

Fourth F4 instalment, claim No. 5000465.

Fourth F4 instalment, claim No. 5000457.