Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

Match the terms with their definition.

_____ bone marrow a. largest artery
_____ spleen b. cardiac pacemaker
_____ vitamin K c. source of all blood cells
_____ HDL d. inside red blood cells
_____ SA node e. carries cholesterol to liver
_____ erythropoietin f. hormone made by kidney
_____ aorta g. lymphoid organ
_____ haemoglobin h. brings blood to left atrium
_____ vena cava i. cofactor for clotting factor

Summary Introduction

To match: Terms with their suitable definitions.


Bone marrow: c. source of all blood cells.

The bone marrow is a semi-solid tissue that is seen inside the spongy bones in the body. It is mainly composed of immature stem cells. Most of the blood cells are produced inside the bone marrow only.

Spleen:g. lymphoid organ.

Lymphoid organs are the cardinal part of the immune system, mainly composed of lymph and lymph nodes. White blood cells are the major constituent of lymphatic organs, especially lymphocytes.

Vitamin K: i. cofactor for clotting factor.

Vitamin K is an important cofactor essential for the synthesis of many proteins that mediate the clotting process. A deficiency of this vitamin can lead to a tendency to bleed excessively.

HDL:e. carries cholesterol to liver.

HDL (high-density lipoproteins) refers to the good cholesterol that carries cholesterol from different parts of the body to the liver. In the liver, all those cholesterol molecules will be removed then.

SA node: b. cardiac pacemaker.

SA node (sinoatrial node) is an important part in the cardiac system that controls the heart rate. Therefore, it is commonly known as the natural pacemaker of the heart...

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