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Skeletal System
The skeletal system provides definite shape and mechanical support to the body, and it also helps in movement and locomotion. Ask questions about the skeletal system and bones here.
14,490 Questions
What 2 components are responsible for the hardness and pliability of bones?
your web site is bull
thanks for wasting my time
No, teeth are not bones. Is the "skin" lining your stomach skin? It is soft like your "outside skin," but it is not the same.
Bones are defined by the presence of osteoblasts and osteoclasts, the two types of cells that produce and dissolve BONE in the body. Teeth are made by odontoblasts and ameloblasts, which are totally distinct and different from osteoblasts.
Is a skeleton made entirely of nonliving material?
Are you talking about shark skeletons?
Yes, they are bones. However, they are made of a different, softer material, than most bones from other animals - cartilage.
How many bones of the human body can you name?
Human babies have 270 bones at birth. Many fuse together, so an adult human's skeleton consists of 206 bones, in total. So let's name them together!
The bones in the adult human body include (number of each bone in parenthesis):
Vertebral column (spinal column)
- The spinal vertebrae of the vertebral column (33 bones)
- The cervical vertebrae (7)
- The thoracic vertebrae (12)
- The lumbar vertebrae (5)
- Extra lumber vertebrae
- The sacral vertebrae (5 at birth, later fused into one)
- The coccygeal vertebrae (4 at birth, later fused into one)
- The sternum (1)
- The ribs (24, in 12 pairs), including:
- (3) pairs (8th,9th and 10th pairs), also known as false ribs are attached anteriorly to each other and to the 7th rib by cartilages and synovial joints
- (2) pairs of floating ribs (11th and 12th pairs), have no anterior attachment.
- Cervical ribs
- The cranial bones (8)
- The occipital bone
- The parietal bones (2)
- The frontal bone
- The temporal bones (2)
- The sphenoid bone (sometimes counted as facial)
- The ethmoid bone (sometimes counted as facial)
- The facial bones (15)
- The nasal bones (2)
- The maxillae (upper jaw) (2)
- The lacrimal bone (2)
- The zygomatic bone (2);
- The palatine bone (2)
- The inferior nasal concha (2)
- The vomer
- The mandible (lower jaw)
- The hyoid bone (sometimes not counted as facial)
- In the middle ears (6)
- The bones of the upper arm (4 bones, 2 on each side)
- The bones of the lower arm (4 bones, 2 on each side)
- The hand (54 bones, 27 in each hand)
- The carpals
- scaphoid bone (2)
- lunate bone (2)
- triquetrum bone (2)
- pisiform bone (2)
- trapezium (2)
- trapezoid bone (2)
- capitate bone (2)
- hamate bone (2)
- The metacarpals (5 × 2=10)
- The phalanges of the hand
- proximal phalanges (5 × 2=10)
- intermediate phalanges (4 × 2=8)
- distal phalanges (5 × 2=10)
- The carpals
- The coxal bone, or hip bones, has three regions: ilium, ischium, and pubis (2)
- The sacrum and the coccyx attach to the two hip bones to form the pelvis
- The femur
- The patella or knee cap
- The tibia
- The fibula
- The foot (52 bones in total, 26 per foot)
- The tarsus
- calcaneus or heel bone (2)
- talus (2)
- navicular bone (2)
- medial cuneiform bone (2)
- intermediate cuneiform bone(2)
- lateral cuneiform bone (2)
- cuboid bone (2)
- The metatarsals (10)
- The phalanges of the foot
- proximal phalanges (5 × 2=10)
- intermediate phalanges (4 x 2= 8)
- distal phalanges (5 x 2=10)
- The tarsus
- Patella
- Pisiform bone
- Fabella
- Cyamella (bone)
- sesamoids in first and second metacarpal bones
- sesamoids in first metatarsal bone
- inconsistent sesamoids on other fingers and toes
- Lenticular process of the Incus bone
- Rider's bone
- inconsistent sesamoids in legs, arms, and buttocks
Whew! We're done!
Which of tarsals bones are distant and lateral?
The cuboid is the most lateral of the tarsals. It's farthest from the midline, and farthest from the calcaneus.
Can AB donor be transfuse into a type O recipient?
While type O blood is known as being the universal donor, it is not a universal recipient. Type O blood can be transfused into any other blood type, but someone with type O blood could only receive a transfusion of type O blood.
How many bones are there in a woman's body?
Adult women and men have the same number of bones; approximately 206. approximately because all people are different and some people have an extra bone, or have one or two less than others. The difference is at the base of the spine in an area called the coccyx. It can sometimes be one fused bone, or separate bones ranging from 2-4.
At what age is bone growth complete?
Everybody finishes their growth spurt by the time they reach 16 years of age and top of at around 18 years of age.
However, for late bloomers, the human body can slowly grow after until 25 years of age.
What does the stuff in the middle of your bones do?
It's called marrow, and there are two types. The red marrow in the more center produces red blood cells, and the yellow marrow in the ends hold fat. However, in an emergency yellow marrow can be converted into red, but cannot be changed back.
What do you do if you have an broken bone?
FREAK OUT!!!
Nah, I'm only kidding
what you do is up to you so if you must then just call 999 (if you live in Britain) or if you are somewhere else then call the emergency number. They'll figure something out for you. :P
What part of scapulae does the lateral end of clavicle articulate with?
The lateral ends of the clavicles articulate with the acromion processes of the scapulae. This joint is called the acromioclavicular joint.
Why do you loose bones as you get older?
yes you do so don't ask me no more and by the way Justin biber is in love with me kaitlyn not that girl with the last name greenbird what a stupid name
Why is the uppermost vertebrae is called atlas?
From Greek mythology, because it supports the 'globe' of the head.
What is located at the end of the distal end of the radius?
The styloid process is the projection on the distal end of the ulna. It's the wrist bump on the pinkie side of the wrist.
How does a bone repair itself?
there are actually bacteria in your bone that constantly eat it away and enzymes that constantly build it back up. When you have a break, the bacteria stop eating the bone and the enzymes have an opportunity to build it uninhibited. This actually means that where you had your break eventually there will be a mass of bone much larger than normal. When this happens, the bacteria are then reintroduced and allowed to eat at the bone until all returns to normal. This being in an average small break.
What is the biggest and longest bone in the human body?
The largest is the femur and strongest, I believe is skull.
What is the smallest bone in our body?
The smallest of all the bones in the human body is the stapes, aka stirrup. It is one of the three auditory ossicles of the middle ear. The stapes is about 3.3 millimeters in length and weighs 1.98 to 4.3 mg.
