Home
Class 12
BIOLOGY
In the given statements select the corre...

In the given statements select the correct.
a. serum is devoid of clotting factors
b. thoracic duct discharges lymph into the left subclavian vein
c. right lymphatic duct opens into subclavian artery.
d. blocking of lymph flow results in oedema

A

all except a

B

all except d

C

all except c

D

all except b

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to evaluate each of the given statements one by one to determine which ones are correct. ### Step-by-Step Solution: 1. **Evaluate Statement A**: "Serum is devoid of clotting factors." - **Explanation**: Serum is the liquid portion of blood that remains after coagulation (clotting). It does not contain clotting factors, which are present in plasma. Therefore, this statement is **correct**. 2. **Evaluate Statement B**: "Thoracic duct discharges lymph into the left subclavian vein." - **Explanation**: The thoracic duct is the largest lymphatic vessel in the body and it drains lymph into the left subclavian vein. Thus, this statement is also **correct**. 3. **Evaluate Statement C**: "Right lymphatic duct opens into subclavian artery." - **Explanation**: The right lymphatic duct actually drains lymph into the right subclavian vein, not the subclavian artery. Therefore, this statement is **incorrect**. 4. **Evaluate Statement D**: "Blocking of lymph flow results in oedema." - **Explanation**: When lymphatic flow is blocked, it can lead to the accumulation of interstitial fluid, causing swelling known as oedema. Hence, this statement is **correct**. ### Summary of Evaluations: - Statement A: Correct - Statement B: Correct - Statement C: Incorrect - Statement D: Correct ### Conclusion: The correct statements are A, B, and D. The only incorrect statement is C. Thus, the answer is that all statements are correct except for C. ### Final Answer: **The correct answer is: All except C.**
Promotional Banner

Similar Questions

Explore conceptually related problems

Arrange the following in a sequence. a. lymph vessel b. lymph capillaries c. lymphatic duct d. sub clavian vein

Go through the following statements . (i) Hypophysial portal vein carries blood from the hypothalamus to the anterior lobe of the pituitary gland. (ii) The central nervous system lacks lymphatic channels. (ii) The thoracic duct drains into the left subclavian vein. (iv) Hepatic portal vein is formed by the union of superior mesenteric vein and splenic vein. Which of these are correct ?

Read the given statements and select the correct option w.r.t. true and false : (a) Duration of each cardiac cycle is 0.8 seconds which can be altered in fear or fight conditions, (b) Rapid passive ventricular filling takes place when auricles are in diastole and auriculoventricular valves remain closed, (c) Semilunar valves open when intraventricular pressure exceeds the pressure within aorta, (d) Sinoatrial node comprises of autoexcitable tissue.

How many among the given statements are incorrect? a. All of the nodal tissue in human heart is capable of generating 70-75 action protentials in a minute. b. Lymph is devoid of all formed elements of blood. c. Cardiac output is defined as the volume of blood pumped by each ventricle in a cardiac cycle. d. Wall of left ventricle is thickest among all four chambers of human heart.

The given graph depicts the effect of temperature on the activity of the two enzymes A and B that catalyze the same reaction. Select the correct statement (s) for these results A. The rate of reaction in each case increases with increase in temperature and declines at higher temperatures due to denaturation of the enzyme B. Both the enzymes A and B are thermolabile C. At higher temperature the reactants become highly energized and fail to interact with active site, thus decreasing the rate of reaction D. The enzyme A is from a mesophilic organism, whereas the enzyme B is from a thermophilic organism

Read the following (A-D) statements: (A) Plasma without the clotting factor is called lymph. (B) The spleen is the graveyard of RBCs. (C) Eosinophils resist infections and are also associated with allergic reactions. (D) The universal donor blood group is O+ve . How many of the above statements are correct?