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bones [2021/05/12 12:07]
rapidplatypus [The cuboid bone]
bones [2022/06/22 08:05] (current)
aga
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 ==== The cuboid bone ==== ==== The cuboid bone ====
-The cuboid bone in the foot has an uneven cube shape and lies forward of the calcaneus on the lateral edge of the tarsus. Its medial surface is longer than its lateral surface. The cuboid bone usually fuses with four bones: the calcaneus, the lateral cuneiform and the metatarsal bones IV and V. It also sometimes fuses with the scaphoid bone. [([[https://www.choosept.com/symptomsconditionsdetail/physical-therapy-guide-to-physical-therapist-s-guide-to-cuboid-syndrome|Choosept]])]+The cuboid bone in the foot has an uneven cube shape and lies forward of the calcaneus on the lateral edge of the tarsus. Its medial surface is longer than its lateral surface. The cuboid bone usually fuses with four bones: the calcaneus, the lateral cuneiformand the metatarsal bones IV and V. It also sometimes fuses with the scaphoid bone. [([[https://www.choosept.com/symptomsconditionsdetail/physical-therapy-guide-to-physical-therapist-s-guide-to-cuboid-syndrome|Choosept]])]
  
 ==== Slender snipe eel ==== ==== Slender snipe eel ====
-The slender snipe eel (Nemichthys scolopaceus) is a species of eel-like fish. Nemichthys scolopaceus has the largest number of vertebrae of any vertebrate at least 750. The species was first scientifically described by the Scottish physician and naturalist John Richardson in 1848. Its long jaws resemble a bird's beak, hence the species epithet. [([[https://mbr.biomedcentral.com/articles/10.1186/s41200-016-0002-0|BioMed Central]])]+The slender snipe eel (Nemichthys scolopaceus) is a species of eel-like fish. Nemichthys scolopaceus has the largest number of vertebrae of any vertebrateat least 750. The species was first scientifically described by the Scottish physician and naturalist John Richardson in 1848. Its long jaws resemble a bird's beak, hence the species epithet. [([[https://mbr.biomedcentral.com/articles/10.1186/s41200-016-0002-0|BioMed Central]])] 
 + 
 +==== 300 to 206 bones ==== 
 +At birth, we have nearly 300 bones. Later, some of them fuse together so that there are 206 in an adult human. [([[https://www.healthline.com/health/how-many-bones-does-a-baby-have|HealthLine]])] 
 + 
 +==== Male skull differs from the female skull ==== 
 +The male skull differs from the female skull in 14 elements, including the slope of the forehead, the thickness of the eyebrow arch, the mandibular joint, etc. [([[https://www.futurelearn.com/info/courses/forensic-facial-reconstruction/0/steps/25656|Future Learn]])] 
 + 
 +==== Weight of bones ==== 
 +The total weight of the bones in an adult male is about 12 kg and in a female about 10 kg. [([[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4016235/|National Institute of Health]])] 
 + 
 +==== Bone composition ==== 
 +Bone is composed of organic and inorganic components. Organic elements include ossein, which is responsible for the elasticity and flexibility of bone. Inorganic elements include minerals: calcium phosphate, calcium carbonate, calcium chloride, calcium fluoride, magnesium phosphate, or alkaline sodium and potassium salts. In addition to these, bones consist of about 21% water. [([[https://www.biologyonline.com/dictionary/bone-matrix|Biology Online]])] 
 + 
 +==== Scaffolding ==== 
 +The main role of bone is to form the scaffolding or skeleton. It provides protection for internal organs, a place for muscles to attach, and bears the weight of the body. [([[https://biologydictionary.net/skeletal-system/|Biology Dictionary]])] 
 + 
 +==== Bone marrow ==== 
 +Bones are hematopoietic organs, as they house the bone marrow that produces blood cells. [([[https://my.clevelandclinic.org/health/body/22818-bone-marrow|Cleveland Clinic]])] 
 + 
 +==== Living without bones ==== 
 +Is it possible to live without bone parts? Yes, fragments of the skull, vertebrae, sternum, and pelvis are sometimes removed. [([[https://www.sciencefocus.com/the-human-body/how-many-organs-in-the-body-could-you-live-without/|Science Focus]])] 
 + 
 +==== Plastic properties ==== 
 +Despite their great hardness, bones have plastic properties. Bone is able to adapt its appearance, shape, and thickness to the prevailing conditions. [([[https://teambone.com/education-basic/biomechanics-of-bone/|Team Bone]])] 
 + 
 +==== Permanent damage ==== 
 +Some conditions leave permanent marks on the structure of the bones, such as syphilis causes the skull to be covered with tubules that look as if woodworms have passed through. [([[https://www.healthline.com/health/syphilis-secondary|HealthLine]])] 
 + 
 +==== Bone strength ==== 
 +Bone strength reaches a maximum level around age 30, then declines steadily. [([[https://www.sciencedirect.com/topics/medicine-and-dentistry/bone-strength|Science Direct]])] 
 + 
 +==== Vitamin D ==== 
 +It is assumed that 10 ten minutes of sun exposure each day is enough to ensure adequate levels of vitamin D essential for bones. [([[https://onlinelibrary.wiley.com/doi/full/10.1111/nbu.12349|Wiley Online Library]])] 
 + 
 + 
 +{{tag>science biology}}
bones.1620839232.txt.gz · Last modified: 2021/05/12 12:07 by rapidplatypus