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Notas de lectura

Anatomy of the teeth
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8

enero 2026

2025/2026
Teeth are hard, calcified structures found in the mouth that are used for biting, cutting, tearing, and grinding food during digestion. They are embedded in the jawbones and are made up of enamel, dentin, and pulp. Humans have different types of teeth—incisors, canines, premolars, and molars—each adapted for a specific function in the chewing process.
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Notas de lectura

Anatomy of the pharnx
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6

enero 2026

2025/2026
The pharynx is a muscular tube located behind the nose and mouth that serves as a common passageway for both air and food. It connects the nasal cavity to the larynx (for breathing) and the mouth to the oesophagus (for swallowing). The pharynx is divided into three parts: the nasopharynx, oropharynx, and laryngopharynx.
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Notas de lectura

Anatomy of the mouth
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7

enero 2026

2025/2026
The mouth, also called the oral or buccal cavity, is the opening of the digestive system. It receives food, breaks it down by chewing (mastication), and mixes it with saliva to begin digestion. The mouth also plays an important role in speech, taste, and breathing.
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Notas de lectura

Anatomy of the tongue
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9

enero 2026

2025/2026
The tongue is a muscular organ located in the mouth that plays a vital role in taste, speech, chewing, and swallowing. It is covered with taste buds that detect different flavors and helps mix food with saliva to form a bolus for easy swallowing. The tongue also assists in articulation during speech and contributes to oral hygiene by helping clean the teeth and mouth.
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Notas de lectura

Anatomy of the gall bladder
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8

enero 2026

2025/2026
The gall bladder is a small, pear-shaped organ located beneath the liver. Its main function is to store and concentrate bile produced by the liver and release it into the small intestine to aid in the digestion and absorption of fats.
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Notas de lectura

Anatomy of the salivary gland
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8

enero 2026

2025/2026
Salivary glands are exocrine glands that produce and secrete saliva into the mouth. Saliva helps in moistening food, beginning digestion (especially of starch), aiding swallowing, and maintaining oral hygiene. The major salivary glands are the parotid, submandibular, and sublingual glands, while numerous minor salivary glands are found in the lining of the mouth.
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Notas de lectura

Anatomy of the Anus
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6

enero 2026

2025/2026
The anus is the terminal opening of the digestive system through which faeces are expelled from the body. It connects the rectum to the outside and is surrounded by internal and external anal sphincter muscles that control defecation. These muscles regulate the voluntary and involuntary release of waste, helping maintain continence.
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Notas de lectura

Anatomy of the rectum
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6

enero 2026

2025/2026
The rectum is the final straight portion of the large intestine, located between the sigmoid colon and the anus. Its main function is to temporarily store feces before they are expelled from the body during defecation. The rectum has muscular walls that help control bowel movements through coordinated contractions and relaxation of the anal sphincters.
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Resumen

Summary - Biology
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11

enero 2026

2025/2026
Reproductive health refers to a state of complete physical, mental, and social well-being in all matters related to the reproductive system, and not merely the absence of disease or infirmity. It means that people are able to have a responsible, satisfying, and safe reproductive life.
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Resumen

Summary - Biology
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11

enero 2026

2025/2026
Class 12 Reproductive health notes In given pdf all words are clear and neatly provided All necessary points are given Whole chapter summarised
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