The Contraction of the Dash Pulls the Bones during Movement Fill in the Blanks
(a) The ball joint and socket joint is a movable joint. In this, a bone with a round head fits into the cavity of another bone. This allows the bone to rotate freely. For example, the hip and shoulder bones can move in all directions due to the joints of the patella and socket. (a) Bone joints help in the ——————— of the body. b) A combination of bone and cartilage forms the _____ of the body. This chapter deals specifically with body movements in animals and humans by explaining the different processes and parts of their locomotion. It explains the structure, location and function of various joints responsible for body movement in humans. Joint formation and other details are also described here. The next section of this chapter talks about the pattern of movement in various animals such as earthworm, snail, cockroach, birds, fish, etc. (b) False; Cartilage is not as hard as bones and can be bent easily. Fill in the blanks.
(A) Bone joints help in the __ (B) A combination of bone and cartilage forms the _______ (C) The elbow bones are connected by a ________ joint. (D) The contraction of the ________ (c) Our elbow cannot recede because it has a hinge joint that allows movement only in one plane. (a) False; The movement and locomotion of animals depends on their body structure. Thus, animals with different body structures have different modes of movement. (A) F – The movement and locomotion of different animals are different. (B) F – Cartilage is softer than bones. (C) F – The bones of the fingers have joints. (D) T – The two bones of the forearm are the radius and ulna. (E) T cockroaches have a hard, articulated exoskeleton. d) The contraction of the _______ pulls the bones during movement.
(A) In the patella and cavity joint, a spherical structure of one bone fits into a pan-shaped structure of another bone. It allows movement in all directions. Shoulder and hip joints are examples of patella and socket joints. (B) The mandibular bone of the skull is the only mobile bone. This allows us to chew food and talk. It is known as the lower jaw. (C) Our elbow cannot move backwards because the elbow has a hinge joint and this joint only allows movement in one direction, similar to the hinges of a door. In the elbow, it allows to bend and stretch, that is, to move up and down.
Answer the following questions. (A) What is a ball joint? (B) Which of the bones of the skull are mobile? (C) Why can`t our elbow go backwards? Specify true (T) and false (F) under the following sentences. (A) The movement and locomotion of all animals are exactly the same. (B) Cartilage is harder than bones. (C) The bones of the fingers have no joints. (D) The forearm has two bones. (E) Cockroaches have an external skeleton. Students can also save these NCERT solutions in PDF format so that they can use these solutions in offline mode if necessary. The link to download the solutions is given below: (b) the lower jaw bone (mandibular bone) is the only skull bone that is mobile. 9.
Living organisms — characteristics and habitats. Review NCERT Solutions for Class 6 Science Chapter 8: Body Movements. All these solutions are very useful to dispel doubts and manage your exam preparations in the simplest way. Students can also use these solutions to manage their homework. We have provided simple and precise solutions to all complex questions in Chapter 8 of the Class 6 Scientific NCERT. Students also have the option to download these solutions and save them as a PDF so they can use them when needed. The correct correspondences between column I and column II are shown below: 3. Map the elements in column I with one or more elements in column II. Jagran Josh`s free NCERT solutions make your learning experience better than before and give you an edge over others.
These are the best updated solutions that will surely refine your concepts… a) The movement and locomotion of all animals are exactly the same. ( ) (c) The elbow bones are connected by a joint _________ . 2. Specify true (T) or false (F) for the following sentences. . . .