wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Choose the correct statements from the following
1) Veins are made of three different wall layers and valves.
2)
A person with a ‘B’ blood group can donate blood to any blood group of the ABO system.
3) Angina is acute chest pain when blood circulation to the brain is reduced.
4) Vitamin K is necessary for blood clotting.

A
statements 1 and 2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
statements 2 and 3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
statements 1 and 4
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
statements 2 and 4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D statements 1 and 4
Veins are made of three wall layers namely tunica intima, tunica media, and tunica adventitia. The lumen of the veins is guarded by valves to prevent the backflow of blood.
A person with a B blood group can donate blood to a B group or an AB group but not to O and A group.
Angina is acute chest pain due to impaired circulation to the muscles of the heart.
Vitamin K is necessary for blood clotting.
So, the correct answer is 'statements 1 and 4'.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Human Circulatory System
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon