How many bones are present in a rat?
A rat's skeleton is composed of 205 bones, which is more than the number of bones in a human body (206). The rat's skeleton is divided into two main parts: the axial skeleton and the appendicular skeleton. The axial skeleton includes the skull, vertebrae, ribs, and sternum, while the appendicular skeleton includes the bones of the limbs, girdles, and feet.
The rat's skull is made up of 22 bones, including the mandible (lower jaw) and the maxilla (upper jaw). The vertebrae, which make up the spine, number 31 in total, including 7 cervical vertebrae (in the neck), 13 thoracic vertebrae (in the chest), 6 lumbar vertebrae (in the lower back), 4 sacral vertebrae (in the pelvis), and 1 coccygeal vertebra (at the tail).
The rat's ribs are 12 pairs long, and they attach to the thoracic vertebrae. The sternum, which is located in the chest, is composed of 6 bones.
The rat's limbs are made up of the forelimbs (arms) and the hindlimbs (legs). The forelimbs consist of the humerus (upper arm bone), radius and ulna (forearm bones), carpals (wrist bones), metacarpals (palm bones), and phalanges (finger bones). The hindlimbs consist of the femur (thigh bone), tibia and fibula (lower leg bones), tarsals (ankle bones), metatarsals (foot bones), and phalanges (toe bones).
FAQs 1. How many bones are there in a rat's skull? 22 2. How many vertebrae are there in a rat's spine? 31 3. How many ribs does a rat have? 24 4. How many bones are there in a rat's forelimb? 20 5. How many bones are there in a rat's hindlimb? 19
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