Puzzle 20151123214546

en CR 31 Anus: a sphincter muscle at the end of the digestive tract Bile: a greenish liquid responsible for mechanical digestion of fats Bolus: food rolled into a ball by the tongue Cells: the building blocks of all living things Villi: microscopic ‘fingers’ that greatly increase the surface area of the wall of the small intestine Alveoli: a cluster of sacs at the end of the bronchioles where gas exchange takes place Bronchi: tubes formed by the division of the trachea Bronchioles: small tubes formed by the division of the bronchi Diaphragm: a sheet of muscle that separates the chest from the abdomen Pharynx: the cavity at the back of the nose, connecting the mouth and nose to the oesophagus Respiration: the series of chemical reactions that takes place in cells to release energy Respiratory system: the system of organs and tissues that takes the air into the body Trachea: the tube that carries air from the nose and mouth into the chest cavity Angina: severe chest pain caused by lack of oxygen being supplied to heart muscle Artery: a blood vessel that carries blood away from the heart Digestion: the process of breaking down food into a useable form Digestive system: the system of the body where digestion takes place Duodenum: the first part of the small intestine Epiglottis: the flap of skin in the oesophagus that stops food entering the windpipe Gastric juice: a mixture of chemicals produced by cells in the stomach wall Large intestine: the final section of the digestive tract Liver: the largest internal organ, it produces bile Oesophagus: the part of the digestive system that connects the mouth to the stomach Organ: a structure that contains at least two different types of tissue that work together to complete a task Peristalsis: the process of pushing food through the digestive tract by alternating contraction and relaxation of muscles Small intestine: the longest part of the digestive tract Sphincter: a circle of muscle Tissue: a group of cells of the same type that carry out the same job in the body Capillary: the narrowest blood vessel that reaches nearly every cell of the body Cardiac muscle: the type of muscle found in the heart Cholesterol: a fatty chemical that can cause blockages in arteries Circulatory system: the system that carries materials around the body; it consists of the heart, blood vessels and blood

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6					I
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				G						12		13			14
15
				N
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	19 C

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Across:

1.	the system that carries materials around the body; it consists of the heart, blood vessels and blood
3.	a greenish liquid responsible for mechanical digestion of fats
5.	a blood vessel that carries blood away from the heart
7.	the largest internal organ, it produces bile
10.	a circle of muscle
14.	the tube that carries air from the nose and mouth into the chest cavity
15.	the final section of the digestive tract
16.	the first part of the small intestine
17.	the cavity at the back of the nose, connecting the mouth and nose to the oesophagus
19.	a fatty chemical that can cause blockages in arteries
21.	small tubes formed by the division of the bronchi
24.	microscopic ‘fingers’ that greatly increase the surface area of the wall of the small intestine
25.	the process of pushing food through the digestive tract by alternating contraction and relaxation of muscles
27.	a group of cells of the same type that carry out the same job in the body
28.	the narrowest blood vessel that reaches nearly every cell of the body
29.	a mixture of chemicals produced by cells in the stomach wall

Down:

2.	the longest part of the digestive tract
4.	the flap of skin in the oesophagus that stops food entering the windpipe
6.	a cluster of sacs at the end of the bronchioles where gas exchange takes place
8.	severe chest pain caused by lack of oxygen being supplied to heart muscle
9.	a sphincter muscle at the end of the digestive
11.	the process of breaking down food into a useable form
12.	the part of the digestive system that connects the mouth to the stomach
13.	tubes formed by the division of the trachea
18.	the series of chemical reactions that takes place in cells to release energy
19.	the type of muscle found in the heart
20.	a sheet of muscle that separates the chest from the abdomen
21.	food rolled into a ball by the tongue
22.	a structure that contains at least two different types of tissue that work together to complete a task
23.	the building blocks of all living things
26.

Across:

1.	the system that carries materials around the body; it consists of the heart, blood vessels and blood
3.	a greenish liquid responsible for mechanical digestion of fats
5.	a blood vessel that carries blood away from the heart
7.	the largest internal organ, it produces bile
10.	a circle of muscle
14.	the tube that carries air from the nose and mouth into the chest cavity
15.	the final section of the digestive tract
16.	the first part of the small intestine
17.	the cavity at the back of the nose, connecting the mouth and nose to the oesophagus
19.	a fatty chemical that can cause blockages in arteries
21.	small tubes formed by the division of the bronchi
24.	microscopic ‘fingers’ that greatly increase the surface area of the wall of the small intestine
25.	the process of pushing food through the digestive tract by alternating contraction and relaxation of muscles
27.	a group of cells of the same type that carry out the same job in the body
28.	the narrowest blood vessel that reaches nearly every cell of the body
29.	a mixture of chemicals produced by cells in the stomach wall

Down:

2.	the longest part of the digestive tract
4.	the flap of skin in the oesophagus that stops food entering the windpipe
6.	a cluster of sacs at the end of the bronchioles where gas exchange takes place
8.	severe chest pain caused by lack of oxygen being supplied to heart muscle
9.	a sphincter muscle at the end of the digestive
11.	the process of breaking down food into a useable form
12.	the part of the digestive system that connects the mouth to the stomach
13.	tubes formed by the division of the trachea
18.	the series of chemical reactions that takes place in cells to release energy
19.	the type of muscle found in the heart
20.	a sheet of muscle that separates the chest from the abdomen
21.	food rolled into a ball by the tongue
22.	a structure that contains at least two different types of tissue that work together to complete a task
23.	the building blocks of all living things
26.