What tissue has lacunae, calcium salts, and blood vessels?
bone (osseous) tissue
fibrocartilaginous tissue
cartilage tissue
areolar tissue
The Correct Answer is A
A. bone (osseous) tissue: Bone tissue contains lacunae that house osteocytes, a hard matrix rich in calcium salts for structural support, and is highly vascularized, allowing nutrients and waste to be transported through blood vessels.
B. fibrocartilaginous tissue: Fibrocartilage contains lacunae with chondrocytes but lacks blood vessels and has a less rigid matrix compared to bone, limiting its nutrient supply and healing capacity.
C. cartilage tissue: Cartilage in general contains lacunae with chondrocytes and a flexible matrix, but it is avascular, relying on diffusion for nutrient delivery rather than direct blood supply.
D. areolar tissue: Areolar connective tissue is loose and highly vascular, but it does not have lacunae or calcium-rich matrix. It primarily provides support, cushioning, and elasticity rather than rigid structural support.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. adipose CT:Adipose tissue primarily stores fat for energy and cushioning and does not provide the elasticity or vibration properties required for vocal cords.
B. elastic CT:Elastic connective tissue contains abundant elastic fibers, allowing the vocal cords to stretch and recoil during sound production. Its flexibility and resilience are essential for the rapid vibrations needed for speech.
C. areolar CT:Areolar tissue is a loose connective tissue that provides support and cushioning but lacks the dense elastic fibers necessary for vocal cord function.
D. elastic cartilage CT:Elastic cartilage provides flexible support in structures like the ear and epiglottis but is not the main tissue responsible for the vibration and elasticity of vocal cords.
Correct Answer is C
Explanation
A. G1 (gap 1):During G1, the cell grows and performs normal metabolic activities. Organelles are duplicated, but DNA replication does not occur in this phase.
B. G2 (gap 2):G2 follows DNA synthesis and involves further cell growth and preparation for mitosis, including the production of proteins needed for cell division. DNA replication has already been completed by this point.
C. S (synthesis):The S phase is dedicated to DNA replication. Each chromosome is duplicated to ensure that the resulting daughter cells receive an identical copy of the genetic material.
D. metaphase:Metaphase is a stage of mitosis, not interphase. During metaphase, replicated chromosomes align at the cell’s equatorial plane in preparation for separation.
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