Bab 14: Sokongan Dan Pergerakan Dalam Manusia Dan Haiwan Flashcards

(18 cards)

1
Q

Apakah 3 jenis sistem sokongan?

A
  1. Rangka hidrostatik
  2. Rangka luar (eksoskeleton)
  3. Rangka dalam (endoskeleton)
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2
Q

Contoh haiwan yang ada rangka hidrostatik?

A

Cacing tanah, obor-obor, anelida

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3
Q

Ciri-ciri rangka hidrostatik?

A

Tiada tulang, pergerakan bergantung pada tekanan cecair dalam rongga badan

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4
Q

Contoh haiwan dengan rangka luar (eksoskeleton)?

A

Serangga, ketam, labah-labah

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5
Q

Kelemahan rangka luar?

A

Tidak membesar bersama haiwan – perlu ganti (bersalin kulit)

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6
Q

Contoh haiwan dengan rangka dalam (endoskeleton)?

A

Manusia, kucing, burung

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7
Q

Fungsi rangka dalam manusia?

A

Sokongan, perlindungan organ, penghasilan sel darah, tempat pelekatan otot

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8
Q

Jenis rangka manusia?

A

Rangka paksi- tengkorak, turus vertebrata, rusuk, sternum (tulang dada)

Rangka apendaj- lengkungan pektoral, lengkungan pelvis, tulang kaki dan tulang lengan

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9
Q

Apa itu sendi?

A

Tempat dua tulang bertemu, membolehkan pergerakan

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10
Q

Jenis-jenis sendi?

A
  1. Sendi engsel – siku, lutut
  2. Sendi bebola dan soket – bahu, pinggul
  3. Sendi putar – tengkuk
  4. Sendi gelongsor – pergelangan tangan
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11
Q

Apakah ligamen?

A

Tisu elastik yang sambungkan tulang ke tulang

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12
Q

Apakah tendon?

A

Sambungkan otot ke tulang

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13
Q

Apakah peranan otot antagonis?

A

Dua otot bekerja bersama – satu mengecut, satu mengendur (contoh: bisep & trisep)

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14
Q

Contoh tindakan otot antagonis?

A

Bengkokkan tangan – bisep kontrak, trisep relaks

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15
Q

Adaptasi haiwan untuk pergerakan?

A

Burung – tulang ringan, otot dada kuat
Ikan – badan torpedo, sirip & ekor
Serangga – eksoskeleton ringan, sayap

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16
Q

Apa kepentingan sistem sokongan?

A

Membolehkan pergerakan, kekalkan bentuk badan, perlindungan organ dalaman

17
Q

Apa berlaku jika ligamen koyak?

A

Pergerakan sendi terganggu, rasa sakit, bengkak

18
Q

Apa itu rawan?

A

Tisu elastik keras, lindungi hujung tulang & kurangkan geseran