The excellent example of traingular or fan shaped muscle fibre is :
Pectoralis major
In a triangular or fan-shaped (convergent) muscle, fibres arise from a broad origin and converge to a narrow insertion, giving the muscle a fan shape. The pectoralis major, spreading from the clavicle, sternum and ribs to a single tendon on the humerus, is the classic example.
The brachioradialis is a long fusiform (strap-like) muscle, the extensor or flexor digitorum longus is a pennate muscle with a long tendon, and the deltoid is a multipennate muscle.
Hence, the excellent example of a triangular or fan-shaped muscle fibre arrangement is Pectoralis major.
Similar Questions
Resting membrane potential is :
Which among the following is the chief inhibiting neurotransmitter ?
Match List I with List II and select the correct answer using the codes given below :
List I List II (a) Hypothalamus (1) Causes extreme over-eating (b) Lateral hypothalamic damage (2) Responsible for monitoring food intake (c) Ventromedial hypothalamic damage (3) Regulate feeling of hunger (d) Changes in levels of Glucose (4) Leads to refusal of food and starvation Codes :
(a) (b) (c) (d)
Agnosia is an inability to :
Neurofibrillary tangles and plaques are seen in brain scans of patients with :
Match List I with List II and select the correct answer using the codes given below :
List I (Traditional Terms) List II (Structures) (a) Telencephalon (1) Cerebellum (b) Diencephalon (2) Tectum (c) Mesencephalon (3) Cerebral cortex (d) Metencephalon (4) Thalamus Codes :
(a) (b) (c) (d)
Which is odd among the following for HIV ?
Lumber punctures can be used to diagnose :
(1) Bacterial meningitis
(2) Viral infections
(3) Brain abcess and tumor
(4) Multiple sclerosis
Unmyelinated intervals on axons are called :
The term psychoneuroimmunology is associated with which of the following ?
Important Questions from Human body
- Which of the following minerals is essential for oxygen transport in the blood?
- How many pairs of false ribs are located above the floating ribs that are connected to each other by costal cartilage?
- Which mineral helps in the formation of insulin granules, digestion, metabolism and functioning of the male prostate?
- Which of these nutrients is the main energy source for the body/ human diet?
Consider the following statements regarding diabetes:
1. It is caused by the oversecretion of insulin by pancreas.
2. The glucose level increases in the blood.
3. The patient urinates frequently, loses weight and becomes lethargic.
How many of the statements given above are correct?
