What are the four parts of our body?

Our body consists of four parts: head, neck, torso, and limbs.

The head anatomically refers to the snout part of an animal, which usually includes organs such as the brain, eyes, ears, nose, mouth, etc. (all of which support various sensory functions such as sight, hearing, smell, taste).

The upper boundary of the neck is the line between the inferior border of the mandible, the posterior edge of the mandibular ramus, the mastoid process and the external occipital carina, and the lower boundary is the line between the upper sternal border, clavicle, acromion and the spinous process of the seventh cervical vertebra.

The trunk bones include 24 vertebrae, 1 sacrum, 1 coccyx, 1 sternum, and 12 pairs of ribs. Involved in the constitution of the spine, bony thoracic cage and pelvis.

Head, neck, torso, limbs. The head consists of two parts: the cranial and the face. The skull contains the brain. The face has sensory organs such as eyes, ears, nose, tongue, and a digestive system.

The starting point is the mouth. A newborn's head accounts for a quarter of its entire length, while an adult accounts for one-eighth. Normal people have hair on their heads to prevent heat loss.

Each movement change of the human body is caused by the rotation of the corresponding joint point, and the bones of the whole body are connected by many joint points that can be rotated. These joint points can be summarized into 4 large points (the left and right shoulder joints.

and hip joints) and 8 small dots (wrist joints, elbow joints, knee joints on the left and right sides.

and ankles).

Our body is made up ofHead, torso, arms, legs, and hands.

1. Head. The head consists of two parts: the cranial and the face. The skull contains the brain. The face has sensory organs such as eyes, ears, nose, tongue, and a digestive system.

The starting point is the mouth. The head of a newborn baby accounts for a quarter of its entire length, while an adult accounts for one-eighth of its entire length, and the head is the command center of the human body, and all conscious activities must be directed by the head.

2. Torso. Torso, generally refers to the body, the body of a human statue, especially the body of a human statue without a head, a neck, and no limbs.

3. Arms and legs.

The arm is the part below the shoulder and above the wrist, and the leg refers to the section of the lower limb from the hip to the knee, also called the thigh. The thigh, which is the upper part of the leg, connects the calf to the knee. The calf, on the other hand, is the lower part of the leg that connects to the thigh with the knee.

4. Hands. Hands, are humans or other primates.

Part of the anterior end of the animal's arm. It is composed of five fingers and the palm of the hand, which is mainly used to grasp and hold things, and the two hands are symmetrical and mirror each other.

The body can be divided into four parts: head, neck, torso, and limbs.

There are four basic tissues in the human body, epithelial tissue and connective tissue.

Musculature and nervous tissue. Several tissues combine with each other to form structures with certain forms and functions, called organs, such as bones, brains, hearts, lungs, kidneys, etc. The system is composed of organs, and the human body has a locomotor system and a digestive system.

Respiratory, urinary, reproductive, vascular, sensory, nervous, endocrine system.

Wait. Each system is organically coordinated and cooperates with each other to make the human body normal.

Generally speaking, the human body is composed of a head, torso, and limbs.

According to the system, it can be divided into 10 systems: ** system, nervous system, central nervous system, locomotor system, digestive system, secretion system, respiratory system, circulatory system, reproductive system, lymphatic system.

Body is a Chinese word that refers to the entire physiological organization of a person or animal, and sometimes specifically the body and limbs of the body, and the health status of the whole body composed of various physiological tissues of a person or animal.