Body Systems

Circulatory system

Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away. Generating high hydrostatic pressure to pump blood out of the heart, while also creating low pressure to bring it back in.


The heart powers the entire circulatory system, transporting nutrients, oxygen, waste, heat, hormones, and immune cells throughout the body.


Disorders: hypertension, atherosclerosis and coronary artery disease


Digestive system

Mechanical and chemical processes that provide nutrients via the mouth, esophagus, stomach and intestines. Every step of the way is working to reduce all the different kinds of molecules in food into their tiniest and most basic forms by physically smashing or using enzymes. Gut is where 80% of nutrient absorption take place.


Disorders: Dyspepsia, dysentery, diarrhea, constipation, malabsorption, ulcer, appendicitis


Endocrine system

Pituitary gland is the master of all glands. It regulates the followings,

Growth hormones, thyroid stimulating hormones, adrenocorticotropic hormone, follid stimulating hormone, luteinizing hormone and prolactin.


Disorders: denomas, prolactinoma, Cushing’s syndrome, hyperthyroidism and hypothyroidism.


Respiratory system

The respiratory system contains the nasal cavities, throat areas and lungs. The pharynx is shared with the digestive tract. Air moves from the pharynx to the larynx, which protects the opening to the trachea. The trachea is the main passageway to the lungs. It acts as an air filter. Inside the lungs, oxygen is extracted from the air, and carbon dioxide is exhaled as a waste product.


Disorders: Asthma, bronchitis, bronchiectasis, and pneumonia.


Nervous system

The nervous system sends signals throughout the body to control function and movement. It is composed of the brain, spinal cord and peripheral nervous system. It directs quick responses to stimuli, such as automatic reflexes.


25% of the calories that you take in every day are consumed by your brain’s activity.


Disorders: Diabetes, myasthenia gravis, myopathy, dermatomyositis, spinal cord disease, multiple sclerosis, parkinson disease, stroke, epilepsy, neurological infection.



Musculoskeletal system

Human anatomy and physiology is a vast subject, as is the art of Yoga. Nevertheless, combining knowledge from both fields is extremely beneficial to the Yoga practitioner. Athletes can improve their performance and experience fewer injuries through a basic understanding of their musculoskeletal system.



Hip adductor muscle group


Mostly used for bringing the thighs together (called adduction). For example, crossing your legs when you are comfortably sitting in a sofa.

Tigthness limits poses such as front splits. Weakness limits Bakasana and crow.

Hip extensor


Tightness in the glutes limits forward bend and lotus (require extensive external rotation of the femur at the hip). Weakness limits back bend and one legged standing poses.

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