How many cervical vertebrae are there?
the first 7 vertebrae, the neck vertebrae, are considered to be cervical
What organic material is bone made of?
Cells:
- Bone Stem Cells: OsteogenitoràDivides and causes osteoblasts
+Osteoblasts [changes into an osteocyte]
Bulid matrix, bone forming
+Osteocytes [changes into an osetoclast] found in the lacunae
New house has to be built
+Osteoclasts
Bone destroying cell
Osteoids:
+proteoglycans, glycoproteins, and collagen
as you grow older you grow taller & your bones begin to grow as well. hah. im not sure thoee! hah. as you grow older you grow taller & your bones begin to grow as well. hah. im not sure thoee! hah.
Does the skeleton store calcium and phosphorus in the bones and then release them into the blood?
Only if the bone is being broken down by cells known as osteoclasts. It is not a good sign if high levels of calcium and phosphate are being released into the blood normally as it shows bone is being broken down. However, through the action of the parathyroid hormone, the bones balance the levels of these mineral salts in the blood via this process. Yes. Calcium is one of the major minerals in the skeletal system. Certain parts of your muscle cells called sarcoplasmic reticulum also store calcium for the muscle to use. Calcium is either stored or released from bone in response to hormone messengers, particularly calcitonin & parathyroid hormone.
The cells responsible for the re-absorption of bone are?
Osteoclasts are responsible for the break down bone. Osteoclasts release minerals that result in a transfer of calcium from bone fluids to the blood stream which is the re-absorption process.
It pertains to the thorax...
But you can use it as a thoracic spine, thoracic surgery, thoracic cavity, thoracic outlet syndrome, thoracic spine pain, thoracic vertebrae, thoracic medicine, thoracic surgeons, thoracic strains, sprain thoracic, or thoracic spine disorder; it's pretty self explanatory.
Is the proximal femur close to the pelvis?
The Femur is the Thigh Bone (the bone in the top part of the leg) It is connected to the Pelvis at the Hip (synnovial Ball and Socket joint between the head of the femur and the Acetabulum of the pelvis) and to the two bones of the lower leg (Tibia and Fibula) at the Knee joint (a synnovial hinge joint). The term Proximal is the opposite partner of the term Distal. Distal has perhaps the more obvious of the two meaning as it is related to the word "distant" meaning far away. The term, when used in anatomy, means the part of a structure that is far away from the trunk of the body. Proximal then, being the opposite, means the part of a structure that is closest to the trunk of the body. For example the three phalangees in a finger are reffered to as the proximal (the one that connects to the hand), middle (the one that is between the other two) and distal ( the one at the tip of the finger) phallangess. The terms however are also sometimes used when talking about internal organs. By definition of the terms this is an incorrect usage but there is no other practical way to describe things like the small intestine as it is soo convoluted. In short the Proximal Part of the Femur is the part that is close to pelvis (the the distal part is close to the knee) but as there is only one femur in each side, ie not one further from the trunk than the other, it is incorrect to call it the proximal femur.
Upper ribs are attached to the sarum?
The upper ribs are not attached to the sacrum. The ribs are connected to the thoracic vertebrae at the back and to the sternum in the front. The sarum or sacrum is a bone at the base of the spine that connects to the pelvic bones.
Major organs that occupy the thoracic cavity?
Two lungs with the passages. Your heart with the vessels and esophagus.
What is the difference between the bone structure of a rat and human?
Not much. Most all mammals have the same bones, only their sizes and shapes are different. For example: a giraffe and a human both have seven cervical vertebrae. In fact, all mammals, even whales have the same number of cervical vertebrae.
Longest strongest bone in the body?
The femur, also known as the thigh bone, is the longest and strongest bone in the human body. It extends from the hip to the knee and plays a crucial role in supporting the body's weight and facilitating movement.
The medical term for a fracture where the tissues of the body are torn and the bone is exposed to open air is an open or compound fracture. This type of fracture can lead to an increased risk of infection due to exposure of the bone and surrounding tissues. Immediate medical attention is necessary for proper treatment to prevent complications.
What is a gap between bones called?
A gap between bones is called a joint. Joints allow for movement and flexibility in the skeletal system.
What is the tissue in the central canal of bone that consists chiefly of fat cells called?
The tissue in the central canal of bone that consists chiefly of fat cells is called yellow bone marrow. Yellow bone marrow serves as a storage site for fats and can also convert into red bone marrow to produce red blood cells when needed.
Bones get their strength from a combination of calcium, phosphorus, and other minerals like magnesium and vitamins like Vitamin D. Regular weight-bearing exercises and a balanced diet also play a crucial role in maintaining bone strength. Additionally, hormonal balance, such as adequate estrogen for women and testosterone for men, contributes to bone health.
The sternum, also known as the breastbone, is located in the center of the chest. It connects to the ribs and collarbones and plays a crucial role in protecting the heart and lungs.
What are the main bones in your body?
The major bone groups, locations, and bones are the following:
The skull in the head includes the cranium and the mandible. The cranium mainly includes the frontal bone, the parietal bones, the temporal bones, the occipital bone, the zygomatic bones, and the maxillae.
The spine, spinal column, or vertebral column in the back includes the cervical vertebrae, the thoracic vertebrae, the lumbar vertebrae, the sacrum, and the coccyx.
The rib cage in the chest includes the true ribs, the false ribs, the floating ribs, and the sternum.
The arm bones include the scapulae, the humeri, the ulnae, and the radii.
The hand bones include the carpals the metacarpals, and the phalanges.
The pelvis in the hip includes the ilia, the ischia, and the pubic bones.
The leg bones include the femora, the patellae, the fibulae, and the tibiae.
The foot bones include the tarsals, the metatarsals, and the phalanges.
Source(s) My very smart brain.
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One of the bones in the lower arm is called the?
One of the bones in the lower arm is called the ulna. It is located on the inner side of the forearm, alongside the radius. The ulna plays a critical role in stabilizing the forearm and allows for movements like rotation and flexion.
What are the two main parts of the human skeleton?
The two main parts of the human skeleton are the axial skeleton, which includes the skull, vertebral column, and rib cage, and the appendicular skeleton, which includes the bones of the limbs and the girdles that connect them to the axial skeleton.
Give three reasons why you have a skeleton?
1) The skeletal system provides solid support to attach muscles to so that your muscles can do useful work.
2) The skeletal system protects your internal organs, in particular the ribcage and skull provide this benefit.
3) The skeletal system creates new red and white blood cells for your body.
It depends on what animal you are talking about,
Jellyfish dont have bones, but if you are talking about a mammal,
Yes.
When does bone development begin and end?
Most bones develop from cartilage. In the second month of fetal development, much of the skeleton is made of cartilage, and at about the third month, osteocytes begin to develop and release minerals which lodge into the spaces in between the cartilage cells, turning it into bone, which is called ossification. In a few bones, though, like parts of the skull, is develops directly without forming cartilage first.
Bones continue to develop after birth, and between early childhood and late adolescence, bone cells gradually replace the cartilage in long bones of limbs. The area where this takes place is the epiphyseal plate, wich is composed of cartilage cells which divide, pushing old cells out towards the middle of the bone. As the older cells die, the are replaced by new ones, and growth continues until the bone has replaced all of the cartilage of the epiphyseal plate.
At this point, bones no longer elongate, and a person has usually reached their full height. When bone is completely finished developing, a person is generally in their late 20's or early 30's.
What are the five functions of bones?
1) to protect your internal organs, for example, the ribs surround the heart and lungs
2) major muscles are attached to the cone and help them move
3) Major quantities of calcium and phosphorous compounds are stored in the skeleton for later use. Calcium and phosphorous make bones hard.
4) The skeleton provides support and shape for your body.
5)blood cells are formed in the center of many bones in soft tissue called red marrow located in the bones. These flow throughout your body.
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Bone is a dense and mineralized tissue composed of calcium and phosphorus, which makes it resistant to degradation. Additionally, bone tissue has a limited blood supply and is not easily accessible to enzymes that break down organic materials, further contributing to its durability. Furthermore, bone is constantly being remodeled by a process called bone turnover, which helps maintain its structure and strength over time.