Human Body Mastery

Human biology for SSC, RRB and UPSC foundations

Biology questions in SSC CGL, CHSL, MTS, RRB NTPC, Group D and state police papers keep coming back to the same facts: the largest gland, the smallest bone, which chamber of the heart has the thickest wall, which part of the brain controls balance. Human Body Mastery puts those facts on the diagram itself — 12 diagrams and 119 parts, each with its name in English and Hindi.

What you can explore

• Major organs (प्रमुख अंग): Brain, Oesophagus, Trachea, Thyroid gland, Lungs, Diaphragm, Heart, Liver, Gallbladder, Stomach, Spleen, Pancreas, Large intestine, Small intestine, Appendix, Urinary bladder.
• Skeleton (कंकाल तंत्र): Scapula, Ribs, Vertebral column, Skull, Mandible, Clavicle, Sternum, Humerus, Radius, Ulna, Hand bones, Pelvis, Femur, Patella, Tibia, Fibula, Foot bones.
• Heart (हृदय): Aorta, Pulmonary veins, Left atrium, Superior vena cava, Inferior vena cava, Right atrium, Pulmonary artery, Right ventricle, Left ventricle, Septum, Tricuspid valve, Mitral (bicuspid) valve.
• Brain (मस्तिष्क): Cerebrum, Corpus callosum, Thalamus, Hypothalamus, Pituitary gland, Midbrain, Cerebellum, Pons, Medulla oblongata, Spinal cord.
• Eye (नेत्र (आँख)): Vitreous humour, Sclera, Choroid, Retina, Aqueous humour, Cornea, Iris, Pupil, Ciliary muscles, Lens, Yellow spot, Blind spot, Optic nerve.
• Ear (कर्ण (कान)): Pinna, Ear canal, Eardrum, Malleus, Incus, Stapes, Semicircular canals, Cochlea, Auditory nerve, Eustachian tube.
• Kidneys & urinary system (वृक्क एवं मूत्र तंत्र): Renal artery, Renal vein, Kidneys, Adrenal glands, Ureters, Urinary bladder, Urethra.
• Female reproductive anatomy (स्त्री प्रजनन अंग): Uterus, Endometrium, Uterine tubes, Fimbriae, Ovaries, Cervix, Vagina.
• Male reproductive anatomy (पुरुष प्रजनन अंग): Penis, Scrotum, Testis, Epididymis, Ductus deferens, Seminal vesicle, Prostate, Urethra.
• Synovial joint (सिनोवियल जोड़): Fibrous capsule, Joint cavity, Bone ends, Articular cartilage, Synovial membrane, Ligament.
• ABO blood groups (ABO रक्त समूह): Group A, Group B, Group AB, Group O.
• Nephron & collecting duct (नेफ्रॉन और संग्राहक नलिका): Bowman’s capsule, Glomerulus, Afferent arteriole, Efferent arteriole, Proximal tubule, Descending limb, Ascending limb, Distal tubule, Collecting duct.

Understand the processes

27 bilingual (English and Hindi) topics connect structures to their functions. Follow each process one stage at a time, test a change in conditions, and switch between SSC recall notes and UPSC-style concepts. These units support human-biology preparation; they do not cover the whole General Science syllabus.

• Heart & blood: Blood circulation; Blood: cells, plasma & clotting; Blood groups & transfusion; Lymphatic system & lymphoid organs.
• Breathing, excretion & skin: Breathing & gas exchange; Nephron & water balance; Skin & body temperature.
• Digestion & nutrition: Digestion & absorption; Teeth, saliva & digestive enzymes; Vitamins & nutrition; Minerals, balanced diet & energy.
• Control & senses: Reflexes & nervous control; Brain, spinal cord & nerves; Autonomic control: fight-or-flight vs rest-and-digest; Hormones & feedback; Vision & hearing.
• Support & movement: Skeleton: bones & joints; Muscles & joints.
• Reproduction & life stages: Reproduction & reproductive health; Pregnancy, birth, puberty & ageing.
• Defence & public health: Immunity & vaccines; Pathogens & prevention; Public health & India’s programmes; Lifestyle diseases, cancer & addiction.
• Cells & genetics: Cells & tissues; Cells, genes & biotechnology; Genetic & chromosomal disorders.

Quick-revision sheets

17 searchable tables (234 rows) for last-minute revision: Organ systems at a glance, Vitamins, Endocrine glands & hormones, Digestive juices & enzymes, Diseases, India’s child immunisation schedule (UIP), Key differences asked in exams, Disorders by organ or system, The 12 cranial nerves, Lung volumes and capacities, ABO blood compatibility (red cells), Bone counts by region, Largest, smallest, longest, first, Discoveries and who made them, Numbers worth memorising, Medical tests & instruments, Health days to remember.

Ways to practise

• Find it — we name a part, you tap it on the diagram.
• Name it — one part is highlighted, you pick its name.
• Function quiz — exam-style questions about the function of the highlighted structures.
• Exam practice — 453 original questions in English and Hindi, with topic or mixed rounds, explanations and missed-question retries. These are practice questions, not verified PYQs.

What is free

Atlas exploration and learning notes are open for a timed trial; a free account gives you more time. Scored drills and exam practice are part of the Pro Pass.

Pair it with the topic practice questions and Map Mastery for geography.