The Nervous System
- Central nervous system: Brain, Spinal cord
- Peripheral nervous system: nerves
Brain: Brain, cerebellum, spinal bulb
The Circulatory System
The circulartory system transports nutrients and oxygen through the whole body.
Veins 静脉
Veins are blood vessels located throughout your body that collect oxygen-poor blood and return it to your heart. Veins are part of your circulatory system. They work together with other blood vessels and your heart to keep your blood moving. Veins hold most of the blood in your body.
Arteries 动脉
Arteries, part of your circulatory (cardiovascular) system, are the blood vessels that bring oxygen-rich blood from your heart to all of your body’s cells. They play a crucial role in distributing oxygen, nutrients and hormones throughout your body.
Capillaries(毛细血管)
Capillaries are delicate blood vessels that exist throughout your body. They transport blood, nutrients and oxygen to cells in your organs and body systems. Capillaries are the smallest blood vessels in your vascular system.
Heart 心脏
The hollow, muscular organ that pumps blood through the body of a vertebrate animal by contracting and relaxing. In humans and other mammals, it has four chambers, consisting of two atria and two ventricles(两个心房，两个心室).
The Urinary System 泌尿系统
Kidneys 肾脏
One of a pair of organs in the abdomen. The kidneys remove waste and extra water from the blood (as urine 尿) and help keep chemicals (such as sodium, potassium, and calcium) balanced in the body. The kidneys also make hormones that help control blood pressure and stimulate bone marrow(刺激骨髓)to make red blood cells.
Ureters
The ureters are bilateral thin tubular structures with a 3 to 4 mm diameter that connect the kidneys to the urinary bladder. These muscular tubes transport urine from the renal pelvis(肾盂) to the bladder.
Bladder 膀胱
Introduction. The bladder is a subperitoneal, hollow muscular organ that acts as a reservoir for urine. The bladder is located in the lesser pelvis when empty and extends into the abdominal cavity when full.
Urethra 尿道
The urethra is the tube that lets urine leave your bladder and your body.
Locomotor system 运动系统
Skeletal system
Bones 骨骼: support body(200+ bones)
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Skull
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Spinal cord
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humerus
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Ribs
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Femur bones
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Jawbone
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Vertebrae
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Clavicle
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Shoulder blade
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Ulna
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Radius
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Sternum
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Pelvis
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Kneecap
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Tibia
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Fibula
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Joints 关节: connect bone, move
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Cartilage 软骨
Muscular System
make movement. elestic, protect organs. filbers: tendons, 600+ muscles.
- Biceps
- Pectorals
- Abs
- Masseter
- Deltoids
- Quadriceps
- Trapezius
- Triceps
- Glutes
- Calves
Respiratory System
In charge of breathing.
- Nose
- Mouth
- Pharynx 咽
- Larynx 喉
- Trachea 气管
- Lungs
Red blood cells.
Carbon dioxide
The Digestive System
In charge making food and energy for our bodies.
- mouth(chew, sliva)
- Pharynx 咽
- Esophagus 食管
- Stomach
- Small intestine
- Large intestine
- Anus 肛门