Osteoblast

previously mentioned periosteum is a layer of dense fibrous connective tissue on the outside that is contiguous with the fibrous layer of the joint capsule (4). The inner layer of the periosteum is composed of osteoprogenitor cells that give rise to osteoblasts that create bone matrix (4). Bone matrix is a solid, calcified tissue that provides support for the body and, in conjunction with skeletal muscles, allows for motion (3)(4). At the knee, the epiphyses of the femur, tibia, and fibula meet…

chelating reagent like EDTA (at pH 7.0 - 7.4) is neutral hence it requires longer time to carry out the process. 2. Degree of mineralization Some of the sample like mucopolysaccharides in new bone, calcifying cartilage or glycogen in some early osteoblast contain abundant mineral especially calcium. When undergoing decalcification, those samples require longer turnaround time. Q2： Have you identify any difference inside the tissues that were fixed by difference fixatives ? Can you…

Early vitamin K deficiency bleeding occurs in 1 and 60 newborns born in the first 0-24 hours after birth. Mothers who used certain medications during their pregnancy makes it a higher risk for early deficiency bleeding also making it more severe. Late vitamin K deficiency bleeding in 2-12 weeks after birth occurs in 1 in 14,000 infants. 30%-60% of these infants have bleeding within the brain and tend to occur in breastfed only babies who have not received the vitamin K shot. All pregnant…

Diseases and Disorders of the Integumentary, Skeletal and Muscular, Systems BY: ANTHONY SALEM Integumentary System  The Integumentary System is composed of Skin and accessory Organs such as hair, nails, and Cutaneous Glands  Largest Organ!  Skin weighs about six pounds and sheds every 27 days Integumentary Cont. Functions of skin • Works to waterproof body (Keratin, a fibrous protein aids in this) • Acts as a cushion and protects body from infection • Excretes waste • Regulates…

Osteoporosis Osteoporosis is the gradual process in which the bones become brittle and fragile from loss of tissue. They become less dense as tissue is lost and become weak and more prone to fractures. This may be due to a variety of factors and usually occurs during old age. Women are more susceptible to the development of osteoporosis. Women are more susceptible to developing osteoporosis, women are four times more likely to develop osteoporosis in their lifetime. Causes: Low oestrogen in…

The story takes place in the Indianapolis of the sick, not Indianapolis of the tourist, workers and students. The main character is Hazel Grace Lancaster, she’s a tall, short haired, and carries an oxygen tank with her wherever she goes. The novels’ author is Hazel and she is a 16 year old protagonist. Another main character is a 17 year old, Augustus Waters, he’s so much taller than Hazel, blue eyes, and a huge basketball fan. There’s something different about both of them, they have cancer.…

Introduction Osteoporosis, a preventable and treatable disease, affects both men and women in the geriatric population. According to the National Institute of Arthritis and Musculoskeletal and Skin diseases, osteoporosis is a disease characterized by low bone mass and structural deterioration of bone tissue, leading to bone fragility and an increased risk of fractures of the hip, spine, and wrist.1 Geriatric patients are more at risk of developing osteoporosis due to increased age and a decrease…

-The axial skeleton consists of a the skull, hyoid bone, auditory ossicles, vertebral column (spine), sternum bone, and the ribs. -The appendicular skeleton consists of the shoulder girdles, upper limbs, pelvic girdles, and lower limbs. -Bones are living tissue that make up the skeleton. They are primarily composed of three types of tissue. These three types are compact tissue, cancellous tissue, and subchondral tissue. -Compact tissue is the outer layer of bones and is harder than the other…

Multiple Myeloma Cancer comes in many forms and severity, and nearly everyone can relate to cancer in one way or another. One specific cancer of the bone has affected many today, and the number of cases is increasing every year. “Multiple myeloma is the most common primary bone cancer among U.S. adults aged 70 years and older, and the incidence of the disease is increasing” (Reisenbuckler, 2014, p. 391). Because this disease is increasing, it is important to know exactly what multiple myeloma is…

(IV) Porous Ceramics The concept behind nearly inert, micro-porous bioceramics (type2) is the ingrowths of tissue into pores on the surface or throughout the implant. The increased interfacial area between the implant and the tissues result in an increased inertial resistance to movement of the device in the tissue. The interface is established by the living tissue in the pores. This method of attachment is often termed biological fixation. It is capable of withstanding more complex stress…