Circulatory system

Question 1

Circulatory system consists of…

Answer 1

Heart, blood vessels and blood

Question 2

circulatory system transports…

Answer 2

food, oxygen, water

Question 3

Removes…

Answer 3

waste products

Question 4

Heart is

Answer 4

hollow, cone shaped, size of fist,

Question 5

heart is where?

Answer 5

mediastinum of thorasic cavity behind sternum and between lungs, oblique angle, two thirds left of midline, base above apex, apex is about 9cm to left of midline at 5th intercostal section.

Question 6

organs associated with the heart

Answer 6

inferior: diaphragm superior: aorta, superior vena cava, pulmonary artery, pul veins. laterally: lungs. post: oesophagus, trachea, lr bronc, desending aorta, inferior VC , thoracic vertebrae. ant: sternum, ribs, intercostal muscles.

Question 7

3 muscle layers in heart

Answer 7

Pericardium (outer), myocardium (middle), endocardium (inner)

Question 8

the two layers of pericardium

Answer 8

outer fibrous sac (prevents over-distension) inner layer is double serous membrane.