A connective tissue sheath known as perichondrium overlies the fre surface of most cartilage. Perichondrium is vascular and its vessles suppl nutients to the cells of the cartilage. Bone- connective tissue consists of cells and exracellular matrix. Consisis of cells nd and extracellular matrix. Special feature of bone is the mineralization of tis matrix with calcium phosphate in the from of hydroxyapatite crystals which produce an extremely hard tissue capable o providing support and protection.
The actual surfaces of the bones that might touch the other are the articulating surfaces, and the cartilage covering those surfaces is called articular cartilage. Periosteum: A dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints. Articular cartilage: The cartilage covering the articular surfaces of the bones forming a synovial joint. Also called arthrodial
It forms tendons and ligaments, provides coverings that support and protect muscle and nervous tissue. The hardest connective tissue, bone, protects organs and provides a framework for movement of muscle. Adipose tissue insulates body and stores lipids. Connective tissue is not very cellular. Its extracellular matrix consists of fibers and ground substance that are made and secreted by different connective tissue.
| | Selected Answer: | Blood-brain barrier | | Question 7 | Multiple Choice | 1 of 1 points | | Which of the following is not one of the major regions of the brain stem? | | Selected Answer: | Cerebellum | | Question 8 | Multiple Choice | 0 of 1 points | | White matter (myelinated fibers) is found in all of the following locations except the ________. | | Selected Answer: | outer portion of the spinal cord | | Question 9 | True/False | 1 of 1 points | | Most of the ascending and descending pathways to and from the brain cross over from one side of the body to the other. | | Selected Answer: | true | | Question 10 | Multiple Choice | 1 of 1
A. Follicle B. Bulb C. Matrix D. Cuticle E. Medulla 3. Which of the following is not a part of the synovial joint? A. Joint cavity B. Articular capsule C. Endosteum D. Articular cartilage 4. Which of the following membrane proteins is responsible for identifying a cell to the immune system as “self” A.
Brain Structures and Functions Worksheet PSY/340 Version 3 1 University of Phoenix Material Brain Structures and Functions Worksheet Provide a brief description for each of the following functions: 1. Basal ganglia Controls cognition, movement coordination, and voluntary movement, it is located deep within the cerebral hemispheres in the telencephalon region of the brain. 2. Corpus collosum Is a thick band of nerve fibers that divides the cerebrum into the left and right hempispheres. 3.
calcium,) and lastly the creation of red blood cells which are used to transport oxygen around the body and to the muscles. The first function of the skeleton is protection. This is done through the clever use of flat bones and fixed joints. An example of a flat bone forming a fixed joint to serve this function is the skull, or cranium. The plates that make up the cranium and fixed into position.
Its main function is to connect the central nervous system to the limbs and organs. The PNS is made up of nerves that are cordlike bundles of nerve fiber that transmit the impulses and ganglia that are knot-like masses of nerve cells all situated outside the central nervous system. It’s not protected by the bone of the spine and skull or by the blood-brain barrier. The PNS consists of 12 pairs of cranial nerves and 31 pairs of spinal nerves. It’s broken down into the somatic nervous system and the autonomic nervous system.
In compact bones, blood vessels pass through the bones periosteum, the membrane surrounding the bone, and the endosteum through perpendicular channels known as the perforating canals. These canals are conjoined with the central canal, also known as the Haversian canal, which runs the length of the bone, and houses the blood vessels and nerve cells. Surrounding the central canal are layers of bone that are often remnants of previous Haversian systems, called lamellae. Inside the layers of the lamellae are small chambers containing osteocytes, or bones cells. These chambers are known as lacunae.