Skeletal system - hind arm or leg bones, Biology

Assignment Help:

HIND ARM OR LEG BONES -

Each leg contain 30 bones as : femur in thigh, patella in knee, tibia & fibula in the lower leg, 7 tarsals in ankle, 5 metatorsles in the sole, 14 phalanges in toes.

FEMUR -

Head of femur is fitted in acetabulum of pelvic girdle.

Condyles of femur fit with facets of fibula and form knee joint.

Proximal end of femur has two bony projection greater trochanter and lesser trochanter.

Third trochenter absent in man, but present in rabbit.

PATELLA -

It is knee cap. It is sesamoid bone because it is formed by ossification of tendon.

TIBIA FIBULA -

Tibia is stout while fibula is thin and small.

Both bones are clear at proximal end while fused at distal end.

Fibula located on outerside of leg.

Cnemial crest present in rabbit.

72_tibia fibula.png

FOOT -

Ankle, sole & toes are clear. In ankle tarsals are present.

In sole metatarsals are present. In toes phalanges are present.

In man phalangeal formula is 2 3 3 3 3 = 14. In rabbit phalangeal formula is 3 3 3 3 = 12.

Related Discussions:- Skeletal system - hind arm or leg bones

What is defective colour vision, What is Defective Colour Vision Defect...

What is Defective Colour Vision Defective colour vision is often called colour blindness. The ability to appreciate one or more of the primary colours is lacking. This can be e

Parasitic adaptations, parasitic adaptations

parasitic adaptations

Enzyme inhibition, Enzyme Inhibition In living organisms, shuttle inter...

Enzyme Inhibition In living organisms, shuttle intermediate compounds along directed pathways,enzymes catalyze reactions, and provide control over biological procedures. Whethe

Shortness of breath, Shortness of Breath It is a subjective sensation...

Shortness of Breath It is a subjective sensation of being unable too draw in enough air to breathe. Most often, this is associated with congestive cardiac failure and may

Fresh water-types of water found on earth, Fresh Water Water, a univers...

Fresh Water Water, a universal solvent, invariably contains many soluble salts. In fresh water the total salt content remains under 15 percent. Different types of soluble salts

Explain pea plants in genetics, Explain pea plants in genetics? Pea Pl...

Explain pea plants in genetics? Pea Plants : In pea plants, sperm are located in the pollen grains produced by the anthers of the flower. Eggs are formed in ovules, structur

How the allele frequencies in a population, A dominant allele will always i...

A dominant allele will always increase in frequency over time. Yes No Q44. When a gene has two alleles, the allele frequencies in a population automatically move toward an equilibr

Agro industrial-early embryonic mortality, Early embryonic mortality E...

Early embryonic mortality Embryo mortality is a serious problem for farmers, practitioners and researchers. The establishment and maintenance of pregnancy is a highly complica

Explain insect resistant crops, Insect resistant crops (IRC) Should...

Insect resistant crops (IRC) Should reduce use of insecticides. This is beneficial to environment because: more beneficial insects around as they are not killed by ins

Can high blood pressure causes the cardiovascular disease, Q. Can high bloo...

Q. Can high blood pressure causes the cardiovascular disease? Hypertension or high blood pressure: It is also one of the risk factors of cardiovascular disease and is frequentl

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages