Advertisements
Advertisements
प्रश्न
Which of the following is mesodermal is the origin?
विकल्प
Retina
Enamel of teeth
Heart
Liver
Advertisements
उत्तर
Heart
APPEARS IN
संबंधित प्रश्न
Choose the correct answer:
The mammalian heart is ___________
The figure below represents the internal structure of a mammalian heart and the associated blood vessels.
(i) (a) Name each of the structures labeled 1, 2, 3, 4, 5, 6, 7 and 8.
(b) State the function of each of the structures 5, 6, 7, and 8.
(ii) (a) State the function of the heart as an entire organ.
(b) Why are the walls of the left ventricle more muscular than the right?
Name the Following
Layer, which surrounds the heart.
Describe the structure and working of the human heart.
What is the duration of joint diastole?
Draw the neat Labelled diagram of the internal structure of the human heart.
Give scientific reason.
Human heart is called as myogenic and autorhythmic.
Enlist the names and locations of valves of human heart giving function of each.
The diagram below depicts the human heart in one of its phases. Answer the questions that follow:
- Which part of the heart is in the contraction phase?
- Give a suitable reason to justify your answer in (a).
- Distinguish between Systole and Diastole.
Match the valves of human heart in column I with the respective opening they guard in column II and select the correct option.
| Column I | Column II | ||
| i. | Eustachian valve | a. | Opening of pulmonary aorta |
| ii. | Thebesian valve | b. | Left atrioventricular aperture |
| iii. | Mitral valve | c. | Opening of inferior vena cava |
| iv. | Semilunar valve | d. | Opening of coronary sinus |
