Skeletal System

Back pain under the left rib cage is a dilemma for all patients suffering from it. Any constant pain is viewed by doctors as a very serious disorder or disease and requires immediate attention and cure. The rib cage is a formation that is composed by the thoracic vertebrae and ribs, sternum-breastbone, and the coastal cartilages that links the ribs to the sternum. The term cage is defined as a structure to house animals. The rib cage is a similar structure which houses and also protects the animal heart and lungs, also known as a thoracic cage in medical terms. In the chest-thorax, nerves emerge from the spine and divide into two parts. The first part heads to the under part of the skin and further sends fibers to the surface of the skin it also travels half way around the chest. The second nerve travels from the bottom of the rib right around the sternum bone, and also surfaces to the skin and then heads back towards the side of the same level as the first nerve. A pain in the rib cage can be any pain or discomfort in the area of the ribs. A fractured or cracked rib can cause rib cage pain, costochondritis, inflammation of the cartilage near the breastbone, osteoporosis and pleurisy. If you do encounter such ribcage you must first get the area x-rayed so as to determine if your ribs are fractured. In the event of a fractured rib an immediate surgery should be scheduled. If you've been suffering this pain for a long period of time (3 months or more) it's necessary to go for an MRI or CT scan and consult a professional to check for nerve damage, tumor or cancer. Inflammation of the cartilage that is between the ribs and breastbone can cause pain around the back and down the arms. This pain is such that it might radiate a sensation as if you were having a heart attack or lung problems. Although the duration of this condition is short but very painful and uncomfortable during the period it lasts. There may be times when you will visit a gastroenterologist because of the constant back pain under your left rib cage because the problem starts with your stomach. You might often feel hungry and the feel the urge to let out a big growl, no matter how much you eat it still does not matter, but instead results in heart burn and pain on the left side underneath the cage. To eliminate the possibility of an infection of the intestine or pancreas routine blood pathology is conducted. Digestive, gastro and bowel disorders should be ruled out after seeking doctor's medical advice. These indications might make you think it's due to twisted bowel, so a through checkup of the colon should be scheduled.

even though most people think it is the spine it is the femur (some people call it the upper leg bone, near the pelvis)

The stirrup bone, also known as the stapes, is the smallest bone in the human body. It measures about 3 millimeters in length and 2.5 millimeters in width.

Around 3 million red blood cells are made every second, so around 259,200 million red blood cells are made each day.

- I can't improve upon a complete answer, but here are some related facts.

- 2.4 million every second, from wikipedia.

60 X 60 X 24 = second per day X 2.4 million = your answer.

Doveshawk.

No, the ear does not have bones; instead, it contains three tiny bones called ossicles (malleus, incus, stapes) that transmit sound vibrations from the eardrum to the inner ear. These ossicles are the smallest bones in the human body and are responsible for amplifying and transmitting sound signals.

The backbone's structure of alternating vertebrae and intervertebral discs provides support, flexibility, and protection for the spinal cord. The vertebrae allow for movement while the discs act as shock absorbers. This structure also enables the backbone to maintain posture and protect vital organs.

The function of the calcium salts in the inorganic material in the bone is to provide strength and hardness to resist compression. Secondly, the calcium salts in the inorganic material are used as a cofactor in many enzymes to make them work. Calcium helps the bones to be stronger and flexible, yet not brittle.

The membrane that covers compact bone is called the periosteum. It contains blood vessels, nerves, and osteoblasts (bone-forming cells) that help with bone growth, repair, and nourishment. The periosteum also plays a role in bone regeneration and acts as a protective barrier for the underlying bone tissue.

Ribs do not produce blood cells themselves. Blood cells are primarily produced in the bone marrow, which is located within the bones. Ribs are essential for protecting the organs in the chest cavity, such as the heart and lungs.

Bone-forming cells are known as osteoblasts. These cells are responsible for the production and mineralization of bone tissue. Osteoblasts play a crucial role in the bone remodeling process, where old bone is resorbed and new bone is formed.

is the most widespread type of cartilage, which has abundant collagen fibers hidden by a tubbery matrix with a glassy, blue-white appearance.

1. The nerve action potential is initiated by the influx of sodium ions into the neuron through voltage-gated channels, leading to depolarization. This depolarization then triggers the opening of voltage-gated potassium channels, allowing potassium ions to exit the neuron and repolarize the membrane.

2. The cross bridge cycle in skeletal muscle contraction involves several steps: 1) Binding of myosin to actin, forming a cross bridge; 2) Power stroke, where the myosin heads pull the actin filaments towards the center of the sarcomere; 3) ATP binding and hydrolysis, causing the myosin heads to detach from actin; 4) Resetting of the myosin heads for the next cycle.

There are about 300 bones in a child's body when its born but as the child ages, bones slowly fuse together and when adulthood is reached, there are 206 bones.

The skull is actually several large, flat bones that are connected by sutures (an immovable synarthritic joint).

The occipital bone makes up the rear part of the skull (the back of the head). The temporal bone forms the sides of the skull and protects the structures of the inner ear. The parietal bone has a left and right hemisphere -- like the brain -- and connects to the frontal bone (the forehead).

If you want to know the scientific name for "skull," it's Cranium.

You will be asked this in health and the answer is Marrow.

Any more information? is it to do with taking the suture out or putting on in? or is it to do with what type or what size? best suture to put in (depending on the reason for it) is probably a 2/0 or 3/0 nylon.

Collagen is the main protein that provides structure in bones and muscles. Calcium phosphate is the mineral component responsible for bone strength and density. Actin and myosin are proteins that play a key role in muscle contraction and movement.

The acetabelum is the hip socket. The "ball" joint of the hip fits into this socket so the leg can move properly.
I think you mean Acetabulum, and it is the socket of the hip joint.

the meninges are 3 membranes that surround and protect the brain and spinal cord, made up of connective tissue.

Bones in the arms and legs tend to be long bones, which are characterized by their elongated shape and serve to support the body and facilitate movement. Short bones, like those found in the wrists and ankles, have a different structure and function.

1. Diaphysis: The long, cylindrical shaft of the bone that provides support and strength.
2. Epiphysis: The rounded ends of the bone that help facilitate joint movement and provide a surface for muscle attachment.
3. Medullary cavity: The hollow area within the diaphysis that contains bone marrow, which is important for blood cell production.

There is no 'public ' bone in human anatomy but 'pubic' bone.

For the bone in many mammals often called the penis bone, see baculum

In vertebrates, the pubic bone is the ventral and anterior of the three principal bonescomposing either half of the pelvis.

It is covered by a layer of fat, which is covered by the mons pubis.

It is divisible into a body, a superior ramus and an inferior ramus.

The body forms one-fifth of the acetabulum, contributing by its external surface both to the lunate surface and the acetabular fossa. Its internal surface enters into the formation of the wall of the lesser pelvis and gives origin to a portion of the obturator internus.

In the female, the pubic bone is anterior to the urethral sponge.

The left and right hip bones join at the pubic symphysis.

The pubis is the lower limit of the suprapubic region.

from wiki

The hand has 27 bones, including the wrist bones (carpals), the bones in the palm of the hand (metacarpals), and the bones in the fingers (phalanges). This complex arrangement of bones gives the hand its dexterity and ability to perform intricate tasks.

Yes, usually you can see your hip bones and ribs, if you are skinny. Ideally, as a woman, your weight should be 100 lbs for the first five feet of height, and then add 5 lbs for every inch after that.