Epiphytes like Vanda develop special layer of absorptive tissue velamen consiting of 4 or 5 layers of long polygonal cells. Velamen is formed by

Read the features of cell layers in the wall of human intestine. * It consists of circular and longitudinal smooth muscles. *Outer thin layer formed of mesothelium. *A layer formed of loose connective tissue and nerves. *Epithelium with goblet cells to secrete muscus. Identify the cell layers and arrange them from inside to outside as seen in the section of intestine.

Which of the folllowing statements regarding the skeleton are correct ? Please select all that apply. (a) The shaft of a long bone is called the diaphysis. (b) The "oraganic" "matrix" of bone is secreted by chondroblasts. (c) Dividing cartilage cells are situated in the marrow cavity of long bones (d) Bone remodelling is a function of the activty marrow cavity of long bones (e) The long bones develop from fibrous connective tissue (f) Most bones are formed by endochondral ossification of a hyaline cartilage model (g) The principal inorganic components of bones are calcium and phosphates.

Which of the folllowing statements regarding the skeleton are correct ? Please select all that apply. (a) The shaft of a long bone is called the diaphysis. (b) The "oraganic" "matrix" of bone is secreted by chondroblasts. (c) Dividing cartilage cells are situated in the marrow cavity of long bones (d) Bone remodelling is a function of the activity at marrow cavity of long bones (e) The long bones develop from fibrous connective tissue (f) Most bones are formed by endochondral ossification of a hyaline cartilage model (g) The principal inorganic components of bones are calcium and phosphates.

Which of the folllowing statements regarding the skeleton are correct ? Please select all that apply. (a) The shaft of a long bone is called the diaphysis. (b) The "oraganic" "matrix" of bone is secreted by chondroblasts. (c) Dividing cartilage cells are situated in the marrow cavity of long bones (d) Bone remodelling is a function of the activty marrow cavity of long bones (e) The long bones develop from fibrous connective tissue (f) Most bones are formed by endochondral ossification of a hyaline cartilage model (g) The principal inorganic components of bones are calcium and phosphates.