1. Why osseous tissue is considered a connective tissue? a. Osseous tissue is considered connective tissue because just like connective tissues, osseous tissue contains an abundant extracellular matrix that surrounds widely separated cells. 2. What is the path a nutrient would travel through compact bone tissue from its diffusion out of a blood vessel in the periosteum to an osteocyte located within the second osteon in from the surface of the bone?
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.
3- Describe the [location, composition, and function] of the epiphyseal plate. The epiphyseal plate is located in the metaphysis and is composed of hyaline cartilage. It is the growth plate, it covers the part of the epiphysis where the bone forms an articulation with another bone. It reduces friction and absorbs shock in articular cartilage. In the periosteum it surrounds the bone surface wherever it is not covered by articular cartilage, it is a sheath of dense irregular connective tissue containing osteoblasts, it functions to protect the bone, assists in fracture repair, nourishes bone tissue, and serves as an attachment point for ligaments and tendons.
The epiphyses of each end are covered in is a thin layer of hyaline cartilage which is known as the articular cartilage, this reduces friction between joints when movement is carried out. The human skeleton performs various functions. It is there to provide a frame work for the body by supporting tissues and providing attachment point for tendons and muscles. The skeleton also provides protection for many internal organs such as the brain, spinal cord, heart and lungs. Skeletal muscles are attached to bones, when the muscles contract and pull on bones you get movement of part of the body.
174 – a) shaft of the bone, b) end of the bone, c) between the shaft and end of the bone 7. Describe the location, composition, and function of the epiphyseal plate, articular cartilage, and periosteum. Ans: pg. 174 – epiphyseal plate: located in the metaphysis, composed of hyaline cartilage, is the growth plate; articular cartilage: covers the part of the epiphysis where the bone forms an articulation with another bone, composed of hyaline cartilage, reduces fiction and absorbs shock at freely movable joints; periosteum: surrounds the bone surface wherever it is not covered by articular cartilage, is a sheath of dense irregular connective tissue containing osteoblasts, functions to protect the bone, assists in fracture repair, nourishes bone tissue, and serve as an attachment point for ligaments and tendons 8. Why is osseous tissue considered a connective tissue?
Use the key terms to identify the joints described below (4 points): Key: cartilaginous fibrous synovial synovial typically allows a slight degree of movement fibrous essentially immovable joints hinge include the hip, knee, and elbow joints cartilaginous cartilage connects the bony portions Use the key terms to match the joint subcategories described below (4 points): Key: suture pivot ball and socket condyloid suture joint between most skull bones ball and socket hip joint pivot joint between the axis and atlas condyloid joint between forearm bones and wrist What characteristics do all joint have in common? (3 points) Even though some fibrous joints and some cartilaginous joints do not move, the two main characteristics of joints are to give our skeleton mobility, and to hold it together. Describe the structure and function of the following structures or tissues in relation to a synovial joint. (4 points) Ligament- Ligaments refer to a fibrous tissue that connects bones to other bones. Capsular ligaments are a part of the articular capsule that surrounds synovial joints.
The ends of the bone are covered with smooth articular cartilage; this acts as a sponge and also reduces friction when the joint is moving. A hinge joint produces a similar action to a hinge on a door in that, it makes an open a close movement. The joint allows flexion and extension and a small degree of side to side movement when the knee is flexed. It is enclosed in an articular capsule to unite the articulating bones and ligaments to strengthen it by limited movement. The articular capsule has two layers: -Fibrous capsule: the outer layer - Synovial membrane: the inner layer that secretes synovial fluid which lubricates to reduce friction.
Compare and contrast Cardiac and Skeletal Muscle. Discuss how their differences enable them to carry out their function more effectively. Skeletal, cardiac and smooth muscle account for nearly half of our body weight, their roles essential for normal bodily function. Skeletal muscles; attached to the skeleton via tendons; maintain body posture, are voluntary controlled and have antagonistic arrangement for muscular contractions. They tend to enlarge following vigorous exercise, a phenomenon called muscular hypertrophy and are located around the body.
Definition: Bones are rigid organs that constitute part of the endoskeleton of vertebrates. They support and protect the various organs of the body, produce red and white blood cells and store minerals. Bone tissue is a type of dense connective tissue. Bones come in a variety of shapes and have a complex internal and external structure, are lightweight yet strong and hard, and serve multiple functions. One of the types of tissue that makes up bone is the mineralized osseous tissue, also called bone tissue, that gives it rigidity and a coral-like three-dimensional internal structure.