Cardiovascular System

1. Which of the following is the function of the cardiovascular system?

• regulating body temperature and fluid volume

• preventing infection

• transporting hormones and wastes

• all of these are functions of the cardiovascular system

1. All of the following are formed elements of the blood except:

• plasma

• erythrocytes

• thrombocytes

• leukocytes

Tags

NGSS.HS-LS1-4

Which of the following components of blood makes up the smallest percentage by volume?

• 1. plasma

• 1. erythrocytes

• 1. leukocytes & thrombocytes

1. An erythrocyte is more commonly known as

• a white blood cell

• a red blood cell

• a platelet

• hemoglobin

Blood plasma is mostly made of

• water

• granules

• oxygen

• hemoglobin

1. The cell shown is responsible for releasing histamines, which dilate blood vessels during an allergic attack.  It is categorized as a(n) __________________ and is called a(n) _____________.

• granulocyte, lymphocyte

• agranulocyte, monocyte

• granulocyte, basophil

• 1. agranulocyte, eosinophil

1. A single hemoglobin molecule can carry _____ oxygen molecules and each red blood cell can carry _________ hemoglobin proteins.

• 4, millions of

• 4, 100

•  millions of, 4

• 1. millions of, 100

 Because oxygen is nonpolar,

• It must be absorbed by the lymphocytes.

• It must diffuse directly into the blood.

• It must be eliminated quickly.

• 1. It must be carried by hemoglobin.

1. The process of hemostasis is completed by which type of cells?

• white blood cells

• red blood cells

• platelets

• plasmas

The hormone that stimulates platelet formation is

• erythropoietin

• interleukin

• thrombopoietin