Why are the two pathways of blood clotting referred to as the extrinsic and intrinsic pathways?

What will be an ideal response


The factors required to initiate clotting are present within the blood in the intrinsic pathway and outside the blood in the extrinsic pathway.

Anatomy & Physiology

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Factors that aid venous return include all except ________

A) venous valves B) activity of skeletal muscles C) pressure changes in the thorax D) urinary output

Anatomy & Physiology

Each heme ring in hemoglobin encloses an atom of

A) magnesium. B) calcium. C) iron. D) sodium. E) copper.

Anatomy & Physiology

Hemoglobin

a. combines preferentially with O2 over any other substance b. is known as carboxyhemoglobin when combined with carbon dioxide c. plays a critical role in determining the amount of O2 exchanged between alveoli and blood d. has characteristics a and c e. has all of the above characteristics

Anatomy & Physiology

The sacroiliac joint is a joint between the ________ and the ________.

A. ilium; sacrum B. sacrum; coccyx C. acetabulum; femur D. ilium; ischium

Anatomy & Physiology