This part belongs to the temporal region of the head, and there are superficial temporal arteries, veins and temporal nerves passing through it. Moreover, the bones in this part are fragile, which will cause temporal bone fracture, damage the middle meningeal artery, lead to poor blood flow, cause cerebral ischemia and hypoxia, and make people die within 3 seconds.

2. Eyes

The eyes have visual function, and when the eyes are hit by violence, people are easily blind. Because visual function plays an important role in people's daily life, eyes are often listed as one of the key parts of the human body.

Step 3: nose

The external nose is located in the center of the face and is a bony structure composed of bones and cartilage. The facial triangle refers to the triangle area below the root of the alar and above the tip of the nose, from both sides of the alar to the outside of the mouth. Punching the nasal triangle can not only directly damage the nasal bone, but also be potentially life-threatening. Fracture of nasal bone can lead to massive nose bleeding, abnormal pain, tears in both eyes and temporary visual impairment.

4. In the crowd

People are located in the triangle of human face. As long as the epidermal tissue is not damaged, it is generally harmless to the violence in the triangle, but the epidermal damage in the triangle will have fatal consequences. In the facial triangle, there are abundant nerves and blood vessels, especially venous blood vessels. The facial vein has a special structure and no venous valve, which is easy to cause blood retrograde. However, facial venous blood reflux mostly enters the intracranial cavernous sinus through deep facial vein and canthus vein. Therefore, the facial triangle is damaged, and external bacteria can easily spread to the whole head and face through facial veins, and invade the skull along facial veins, causing intracranial infection, inducing meningitis and leading to life-threatening. Therefore, no matter how much bleeding, don't squeeze directly with your hands or press with unclean things to prevent bacterial infection from invading your brain.

5. Chin

Because the position of mandible is easy to be hit, it is easy to cause skull base fracture and intracranial hemorrhage after being hit, and the pain is unbearable after being hit, and the coma or shock is serious.

6. Ears

Auricular nerve is close to the brain. After being hit or squeezed, it will damage the branches of arteries and veins leading to meninges and hinder blood circulation. Moreover, the ear is located on the upper edge of the mandible, behind the lower auricle, and there is an acupoint as deadly as the temple. Call bone points, hit bone points in the ear and behind the ear, and then puncture the eardrum or ear bleeding, even concussion or death within 5 seconds.

7. Side of the neck

The weight of the skull itself and the cervical vertebra have great elasticity. When hitting the junction of skull and neck, the head will be severely whipped and swung, and the brain will be strongly impacted. The head impact caused by this violent whipping action can make the brain parenchyma shift in the cranial cavity, so that the brain stem tied to the central axis of the brain is pulled, twisted or hit the occipital slope of the skull base, resulting in severe concussion or brain stem injury. After being hit, people will immediately go into coma or die because of the impairment of brain stem and medulla oblongata function until breathing and heartbeat stop.

8. Shoulder joint

Shoulder joint is the joint with the largest range of human activities. Consists of humerus, scapula, glenoid, ligament and clavicle. It can be adducted, abduction, flexion and rotation, and is an important joint connecting the arms. If violence is used to twist or pull back to the extreme point to the left or right in fighting, ligaments and muscles will be dislocated or torn, and combat effectiveness will be weakened.

9, elbow joint

The elbow joint consists of ulna, flexible bone and humerus. It has a small range of motion, can bend and straighten forward, and can move up and down with the shoulder joint. When you straighten, you will be dislocated or fractured if you fold back or kick sideways.

10, wrist joint

Wrist joint is the main joint of arm, which is composed of flexor and eight small bones of wrist. Wrist joints are mainly connected by ligaments, with a wide range of motion, from flexion, extension, adduction and abduction to rotation. If it goes beyond its range of activities, it will dislocate and tear the ligament. If it is rolled in, it will be folded back or twisted to both sides, wrapped with silk, or even broken.

1 1, back of hand

As the most flexible tool of human beings, the hand also has a very fragile part, that is, the back of the hand. There are many veins on the back of the hand, which will cause pain or fracture to the opponent after being hit. Mostly used to get rid of the other party's grasp, drag, pull, etc.

12, throat

Because there are trachea, carotid artery and vagus nerve in the throat. After being hit hard, he will suffocate or even die in a short time due to lack of oxygen.

13, ribs

There are 12 pairs of ribs, and the bones are thin and long, and the muscles attached to the surface are also very thin. Therefore, hitting any part of the ribs with your knees or kicking with your feet may lead to the fracture or death of the enemy's ribs. And it will shake the internal organs after being hit. After fracture, the sharp part of the broken wound will puncture the internal organs, causing massive bleeding in the body.

Knowing the knowledge of human anatomy and mastering the key parts of the attack can not only correctly understand the technical movements and exert the power of the movements, but also be the theoretical basis for self-protection and purposeful attack on the key parts of the opponent, and strive to win with one blow. Some parts and organs of human body, such as heart, brain and internal organs, have extremely important physiological functions and are essential in the process of life activities. These injuries are extremely threatening to life. Although most of these organs are protected by bones, some of them are exposed and become weak parts.

1, hindbrain

That is, the occipital part of the brain, the junction between the spine and the brain, is the most vulnerable part. If the occipital part is hit by violence, it is easy to form a concussion and even cause more serious brain damage. In violent crimes, the back of the head is the most vulnerable part, and it is also the most difficult part for people to guard against, and it is also the most vulnerable part. Intracranial injury caused by attacking the occipital part of the brain often has fatal consequences.

2. Cervical vertebrae

Hitting the lower triangle behind the neck or grasping the enemy's head with both hands to pull it to both sides is easy to cause cervical fracture and dislocation, and compressing the spinal cord nerve can cause quadriplegia and high paraplegia. Because the cervical vertebral body is relatively small in the spine, the spinal canal is relatively narrow, and the cervical spinal cord expands the most, the contrast between the cervical spinal canal and the cervical spinal cord is not wide enough. When the cervical spine is injured, it is also prone to cervical spinal cord injury. Injury to the spinal cord above the fifth cervical vertebra can also cause diaphragmatic paralysis. After diaphragmatic paralysis, the wounded will suffocate if they can't maintain spontaneous breathing. At present, the spinal cord injury can not reach the level of functional recovery, so most of the spinal cord injuries above the fifth cervical vertebra caused by neck blow can not survive.

3. Kidney

As one of the main organs of the human body, the kidney is easy to rupture and bleed when it is hit hard, and it can kill the enemy within 5 seconds.

Step 4 waist

The waist refers to the part between the lumbar spine and the sacrum, which is a part of the human spine and plays a role in supporting the trunk and conducting gravity. If you are hit by violence here, it will cause disc herniation, lumbar injury and nerve compression, which will make people feel unbearable pain and limit their activities. In addition, it will paralyze people's lower limbs and lose their mobility. The kidney is located between the 12 rib and the third lumbar vertebra, near the posterior abdominal wall. It is the organ with the fastest metabolism in the whole body and is rich in blood vessels. Therefore, without rib protection, it is easy to cause bleeding and the consequences are serious.

5, knee socket

Knee joint is an important joint of human lower limbs, and its bones are large and powerful. It consists of the lower femur, the upper tibia, the patella and the meniscus, which can be stretched forward and bent backward. When you stand straight or forward, using violent wrenches or trampling will make people fall to the ground, or dislocate or fracture.

6. Ankle joint and ligament

The ankle joint is composed of tibia, fibula and calcaneus. It can be retracted, extended and straightened, with a small range of motion. If you kick and twist hard, it will cause dislocation and ligament tear, and lose normal function.