What type of tissue makes up the symphysis pubis?
Elastic cartilage CT
hyaline cartilage CT
fibrocartilage CT
dense regular CT
The Correct Answer is C
A. Elastic cartilage CT: Elastic cartilage provides flexibility and maintains shape in structures such as the external ear and epiglottis. It is not strong enough to withstand the compressive forces required at the symphysis pubis.
B. Hyaline cartilage CT: Hyaline cartilage covers articular surfaces and provides smooth movement at joints, but it lacks the tensile strength and shock absorption needed at the symphysis pubis.
C. Fibrocartilage CT: The symphysis pubis is composed of fibrocartilage, which contains dense bundles of collagen fibers. This structure allows it to resist compression and tension while providing strength and flexibility to support the pelvis.
D. Dense regular CT: Dense regular connective tissue forms tendons and ligaments, which provide strong attachment in one direction. It is not suitable for the multidirectional stress placed on the symphysis pubis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. RNA:RNA is a general term for ribonucleic acid and includes several types with different functions. It does not specifically refer to the RNA that delivers amino acids to the ribosome.
B. mRNA:Messenger RNA carries the genetic code from DNA to the ribosome, directing the sequence of amino acids in a protein, but it does not transport the amino acids themselves.
C. sRNA:Small RNA molecules (sRNA) are involved in regulatory processes within the cell, such as gene silencing, and are not responsible for delivering amino acids for protein synthesis.
D. tRNA:Transfer RNA is responsible for bringing specific amino acids to the ribosome during translation. Each tRNA recognizes codons on the mRNA and ensures that the correct amino acids are added to the growing polypeptide chain.
Correct Answer is A
Explanation
True:Vellus hair is soft, fine, and lightly pigmented, covering much of the body surface. It is most noticeable in children and adult females, where it serves a protective function without providing significant insulation.
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