Tissues And Specialised Cells
Akopọ
No single cell can beat like a heart, carry oxygen, or think. Those jobs need thousands of similar cells working together as a tissue, and organs such as the heart or brain are themselves built from several different tissues layered and combined for a shared purpose.
In this lesson you will learn how bone, muscle, blood, nervous tissue and epithelium each look under a light microscope and how their structure suits their job, then examine how the egg and sperm, the two most specialised cells in the human body, are each built for a single event: fertilisation.
Awọn Afojusun
- Understand that cells are grouped into tissues and that tissues are organised into organs
- Describe the structure of bone, muscle (voluntary, involuntary and cardiac, as observed under a light microscope), blood, nervous tissue and epithelium (squamous and ciliated, with reference to cells lining the cheek and trachea)
- Describe the structure of cells specialised for reproduction, e.g. egg (ovum) and sperm and relate their structure to function
Àwòrán ọpọlọ
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Ṣe ìdánrawò káàdì wọ̀nyí nínú áàpù
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Oriire fun ipari ẹkọ lori Tissues And Specialised Cells. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- Which muscle type shows branched fibres joined by intercalated discs? A) Voluntary muscle B) Involuntary muscle C) Cardiac muscle D) Smooth muscle Answer: C
- Which type of epithelium lines the trachea? A) Squamous epithelium B) Ciliated epithelium C) Cardiac tissue D) Compact bone Answer: B
- What is the main function of a lymphocyte? A) Engulfing bacteria by phagocytosis B) Producing antibodies C) Carrying oxygen D) Clotting blood Answer: B
- Which structure at the tip of a sperm cell contains enzymes that digest a path into the egg? A) Flagellum B) Midpiece C) Acrosome D) Nucleus Answer: C
- A tissue is best described as: A) A single specialised cell B) A group of similar cells working together for a shared function C) Two or more different organs working together D) A structure made only of nervous tissue Answer: B
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
Types of Tissues
Identify the four main tissue types
"Anatomy and Physiology: Types of Tissues" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/anatomy-and-physiology/pages/4-1-types-of-tissues. Access for free at https://openstax.org/books/anatomy-and-physiology/pages/1-introduction
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Abala ìwé ẹ̀kọ́
Anatomy and Physiology of the Male Reproductive System
Describe the structure and function of the organs of the male reproductive system
"Anatomy and Physiology: Anatomy and Physiology of the Male Reproductive System" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/anatomy-and-physiology/pages/27-1-anatomy-and-physiology-of-the-male-reproductive-system. Access for free at https://openstax.org/books/anatomy-and-physiology/pages/1-introduction
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