The cup like structure, in which the femur fits into the hip bone is known as Acetabulum.
the acetabulum is referred to a concave shapoed surface of the pelvis, which have a cup like groove. This groove helps in the binding of the femur head to the hip or the pelvic bone.
The round head of the femur gets fits into this cup shaped structure and forms the hip joint. The acetabulum is formed by the contribution of ischium, ilium and the pubis.
Answer:
Explanation:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Answer:
Answer is option (3).
"Blowing your nose may cause bruising and edema."
Explanation:
Nasal surgeries like septoplasty, rhinoplasty, sinus surgery, etc are usually performed to improve breathing, repair nasal injuries, correct deformities
, change the size or shape of the nose, correct sinus problems, etc.
After the surgery, the patient must follow certain instructions for at least 10 days. The instructions are;
- Avoid strenuous activity for at least two weeks as it may cause bleeding or increase swelling in the operated area.
- Avoid nose blowing after surgery as it may cause bleeding and spreading of infection into the eye. When the patient blows the nose after nasal surgery, the sinus pressure increases and results in increased pressure on the operative site which may cause bruising and edema. But it does not increase intracranial pressure or cause a fracture or decrease oxygen availability.
- Apply nasal saline sprays on each nostril frequently as it keeps the nose clean and clears all debris (dried blood) and maintains moisture in the nose. Also, the clearing of nasal passage results in increased oxygenation.
- Use nasal decongestants to reduce the swelling in the nose.
Answer:
Option). the ability to remember the antigen it encounters
Explanation:
The adaptive or acquired immunity is a type of immunity, which develops by the exposure of pathogens during lifetime. Four features of adaptive immunity includes specificity, diversity, memory, and ability to differentiate between self and non-self.
Cells of adaptive immunity (B cells and T cells) are specific for pathogens. Once the antigens or their components are recognized by pathogens, these cells produce effector cells and memory cells.
These are the memory cells that remember the antigens and provide a rapid and more efficient response during subsequent encounters of those antigens.
Thus, the correct answer is first option.
