Collagenous fibers are very abundant in
blood and hyaline cartilage
ligaments, bones, and the superficial portion of the skin
tendons, ligaments, and the deeper portion of the skin
areolar tissue, tongue, and bones
blood, adipose tissue, and osseous tissue
The Correct Answer is C
A. blood and hyaline cartilage: Blood contains plasma and cells but very few fibers, and hyaline cartilage is mostly composed of a smooth extracellular matrix with limited collagen fibers. These tissues do not have abundant collagen.
B. ligaments, bones, and the superficial portion of the skin: While ligaments and bones contain collagen, the superficial portion of the skin (epidermis) is mostly epithelial tissue with minimal collagen, making this pairing inaccurate.
C. tendons, ligaments, and the deeper portion of the skin: Tendons and ligaments are rich in collagen fibers, which provide tensile strength. The deeper portion of the skin, the dermis, also contains abundant collagen, supporting skin structure and elasticity.
D. areolar tissue, tongue, and bones: Areolar tissue has loosely arranged collagen fibers, and the tongue contains muscle tissue interspersed with connective tissue, so collagen is present but not as abundant as in tendons and ligaments.
E. blood, adipose tissue, and osseous tissue: Blood and adipose tissue contain very few collagen fibers, while osseous tissue contains collagen within its mineralized matrix, making this combination inaccurate for abundant collagen.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. bone; adipose:Bone is the most solid connective tissue, providing structural support and protection. Adipose tissue, while soft and pliable, is not the most fluid connective tissue since it primarily stores fat rather than circulating or transporting substances.
B. bone; blood:Bone is the densest and most rigid connective tissue, providing support, protection, and leverage for movement. Blood is the most fluid connective tissue, circulating throughout the body to transport nutrients, gases, hormones, and waste products.
C. hyaline cartilage; areolar:Hyaline cartilage is firm but not as rigid as bone, and areolar connective tissue is loose and supportive but not fluid; it serves as a cushioning and binding tissue rather than a circulating medium.
D. fibrocartilage; areolar:Fibrocartilage is tough and less compressible than hyaline cartilage but is still less solid and rigid than bone. Areolartissue is a viscous, gel-like matrix that is not the most fluid type.
Correct Answer is A
Explanation
A. centromere:The centromere is the region of a chromosome where sister chromatids are tightly joined after DNA replication. It plays a critical role in ensuring proper alignment and separation of chromatids during cell division.
B. centrosome:The centrosome is an organelle that organizes microtubules and helps form the mitotic spindle during cell division. It is not responsible for holding sister chromatids together.
C. centriole:Centrioles are cylindrical structures within the centrosome that aid in spindle fiber formation. They assist in chromosome movement but do not act as the attachment site between sister chromatids.
D. kinetochore:The kinetochore is a protein complex assembled on the centromere that attaches to spindle fibers. It facilitates chromatid movement but is not the structure that holds sister chromatids together.
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