Biology
The blood vessel without a muscular layer in its wall:
- Capillary
- Vein
- Artery
- Portal vein
Related Questions
Which of the following chemical substances is released from Eosinophils ?
- Histones
- Antitoxins
- Antibodies
- Histamine
The doubled-layered membrane which covers and protects the heart is :
- Pericardial fluid
- Meninges
- Pericardium
- Pleura
The blood vessel which carries blood from the stomach and intestine to the liver:
- Hepatic artery
- Carotid artery
- Hepatic vein
- Hepatic portal vein
The kind of cells that initiate blood coagulation:
- Monocytes
- Lymphocytes
- Leukocytes
- Thrombocytes