Bones to Muscles – How Do We Move?
Bones to Muscles – How Do We Move?
Author Note
This Bones to Muscles- How Do We Move Assignment is being submitted on October 27th, 2013 for Heather Heck’s Section 21 Structure and Function of the Human Body Class.
1. Bone is a very active tissue. Please explain the pathway of how the bone cells get nutrients and oxygen from the blood vessels using the following terms: Periosteum, endosteum, lacunae, lamellae, canaliculi, perforating canals, osteon, Haversian canal (central canal) and trabeculae.
Periosteum is enriched with blood vessels and a small artery which supply the bone tissue with blood. Bone shaft marrow cavity is lined with the endosteum. Concentrated layers of lamellae have fluid-filled cavities (lacunae) and are covered and connected to the haversian canals by canaliculi, a system of interconnecting canals. All together they form a long cylinder of osteon ( Diaz-Curiel, 2009).
The bone is penetrated with blood vessels from outside to inside layers through the perforating canals. Blood circulates through blood vessels in the spaces between the trabeculae (bony bars), providing nutrients and oxygen to the bone cells.
2. In general compare and contrast the three functional classifications of joints according to movement. What are two characteristics that make synovial joints unique and different from other joints? Which joint is stronger-the shoulder or hip joint and why is it?
1. A synarthrosis joint permits no movement and can be either a fibrous or cartilaginous joint.
2. An amphiarthrosis joint permits only slight movement and can be either fibrous or cartilaginous joint.
3. A diarthrosis joint is a freely movable joint and is always a synovial joint:
- Allows considerable movement;
- Contains synovial fluid in a joint cavity (Phillips, 2004).
The hip and shoulder joints have different structure and mission: the hip has a weight bearing structure to allow controlled movement but retain strength
Author Note
This Bones to Muscles- How Do We Move Assignment is being submitted on October 27th, 2013 for Heather Heck’s Section 21 Structure and Function of the Human Body Class.
1. Bone is a very active tissue. Please explain the pathway of how the bone cells get nutrients and oxygen from the blood vessels using the following terms: Periosteum, endosteum, lacunae, lamellae, canaliculi, perforating canals, osteon, Haversian canal (central canal) and trabeculae.
Periosteum is enriched with blood vessels and a small artery which supply the bone tissue with blood. Bone shaft marrow cavity is lined with the endosteum. Concentrated layers of lamellae have fluid-filled cavities (lacunae) and are covered and connected to the haversian canals by canaliculi, a system of interconnecting canals. All together they form a long cylinder of osteon ( Diaz-Curiel, 2009).
The bone is penetrated with blood vessels from outside to inside layers through the perforating canals. Blood circulates through blood vessels in the spaces between the trabeculae (bony bars), providing nutrients and oxygen to the bone cells.
2. In general compare and contrast the three functional classifications of joints according to movement. What are two characteristics that make synovial joints unique and different from other joints? Which joint is stronger-the shoulder or hip joint and why is it?
1. A synarthrosis joint permits no movement and can be either a fibrous or cartilaginous joint.
2. An amphiarthrosis joint permits only slight movement and can be either fibrous or cartilaginous joint.
3. A diarthrosis joint is a freely movable joint and is always a synovial joint:
- Allows considerable movement;
- Contains synovial fluid in a joint cavity (Phillips, 2004).
The hip and shoulder joints have different structure and mission: the hip has a weight bearing structure to allow controlled movement but retain strength