Answer:
a. The bone matrix is very dense and contains deposits of calcium salts
Explanation:
Characteristic of bone tissue
The mineralized matrix of the bone tissue has the organic component which is mainly collagen known as the ossein and an inorganic component of mineral composed of various salts .
The tissues of the bone contain an organic primarily hydroxypatite , calcium carbonate and collagen .
The organic matrix is about 20 percent of the net weight of the bone and is composed mainly of collagen , hence collage is the main structural component of the bone matrix .
Answer:
1) A bachelors degree
2) Psychosocial integrity
3) Health promotions and maintenance
Physiology Integrity
Explanation:
Answer:
C. Contains chondrocytes located in lacunae
Explanation:
Chondrocytes in lacunae are the only cells that make up the cartilage. They secrete the cartilage matrix and are kind of embedded in them. Cartilage matrix is made mainly of proteoglycans and collagen. Chondrocyte is round or polygonal in shape. More the number of chondrocytes, bendier the cartilage. Cartilage has many functions one of which is to reduce the friction between bones.
An action potential in the motor neuron causes ACh to be released into the synaptic cleft. Binding of ACh to sarcolemma receptors initiates graded potentials. How does the shape change of these proteins lead to contraction? ... Myosin heads bind to the newly exposed myosin-binding sites on actin to form cross bridges.