Bone cells, shapes, and functions
The four bone cells are
What is osteogenic, osteoblast, osteocyte, and osteoclast cells
What is hematopoiesis
What is the formation of blood cells
TRUE OR FALSE:
Mesenchymal cells begin the ossifcation process for endochondral ossifcation
what is false
What is the smallest functional unit of a muscle
what is a sarcomere
What are the 5 layers if epidermis
1. stratum basale (germinativum)
2. stratum spinosum
3. stratum granulosum
4. stratum lucidum
5. stratum corneum
What are the 3 structures of the long bone
What is epiphysis, metaphysis, and diaphysis
During fetal development, intramembranous ossification takes place in
what is fibrous connective tissue
In what step do blood vessles begin to penetrate the cartilage and new osteoblasts begin to form the ossification center
What is step 3
during the contraction cycle, what causes the release of Ca+?
What is action potential reaching the endoplasmic reticulum
Skin color is based on
what is epidermal pigmentation and dermal circulation
Thin layer of hyaline cartilage covering the epiphysis where the bone forms an articulation (joint) with another bone is:
what is articular cartilage
What is The periosteum creates a protective layer of compact bone (bone collar) superficial to the trabecular bone. The trabecular bone crowds nearby blood vessels, which eventually condense into red marrow
What bones are formed during endochondral ossifcation and when does the process begin and end
What is long bones and 3-4 weeks in uteruo and ends at age 2.
During the contraction cycle how do the myosin globular protein heads convert from ADP TO ATP
What is hydrolysis of adp
Which layer of dermis contains dense irregular connective tissue of collagen and elastic fibers?
what is reticular layer
The hardness of bone results from the presence of inorganic mineral salts, mainly:
what is hydroxyapatite
TRUE OR FALSE:
The first stage in the development of bone is the migration of the embryonic mesenchymal cells into the area where bone formation is about to begin. These cells increase in number and size and become osteogenic cells. In some skeletal structures where capillaries are lacking, they become chondroblasts; in others where capillaries are present, they become osteoblasts.
what is true
Throughout the whole process how many ossification centers are made
what is 3 ossification centers
When ACh is relased across the synaptic cleft, how does the ACh release stop
What is acetylcholine esterase
When asked about sensory receptors which two receptors respond to light touch and deep pressure/vibration?
What is tactile corpuscles and lamellar corpuscles
TRUE OR FALSE:
Intramembrane ossification and endochondral ossification are two kinds of ossification that do not lead to differences in the gross structure of mature bones. They are simply different methods of bone formation. Both mechanisms involve the replacement of a preexisting connective tissue with bone.
what is true
Place in order the steps involved in intramembranous ossification. 1. Bony matrices fuse to form trabeculae 2. Clusters of osteoblasts form a center of ossification that secretes the organic extracellular matrix. 3. Spongy bone is replaced with compact bone on the bone's surface. 4. Periosteum develops on the bone's periphery. 5. The extracellular matrix hardens by deposition of calcium and mineral salts.
what is 5,1,3,4,2
When the process is complete, if any, what kind of cartilage and where can it be found
What is hyaline cartilage at the epiphyseal growth plates and articular cartilage
The two proteins, troponin and tropomyosin, work together to do what
What is cover the actin until CA+ attaches to tropnin thus uncovering the actin via tropomyosin
Which sweat glands work with the cardiovascular system to regulate body temperature
What is eccrine sweat glands